dissenting. I respectfully disagree with the conclusion of the majority that sexual orientation is a quasi-suspect classification for equal protection purposes under our state constitution and that our marriage statute barring same sex marriage therefore is subject to heightened or intermediate scrutiny. I agree, instead, with the dissenting opinion of Justice Borden and join in that opinion. In a highly persuasive opinion, Justice Borden concludes, in pertinent part, that sexual orientation does not constitute either a quasi-suspect or suspect classification under our state constitution, and that our marriage and civil union statutes satisfy the state constitution when analyzed under the traditional rational basis test. I cannot improve upon Justice Borden’s analysis, and I therefore write separately simply to emphasize two points.

First, “[i]t is well established that a validly enacted statute carries with it a strong presumption of constitutionality .... The court will indulge in every presumption in favor of the statute’s constitutionality .... Therefore, [w]hen a question of constitutionality is raised, courts must approach it with caution, examine it with care, and sustain the legislation unless its invalidity is clear.” (Internal quotation marks omitted.) State v. McKenzie-Adams, 281 Conn. 486, 500, 915 A.2d 822, *322cert. denied, 552 U.S. 888, 128 S. Ct. 248, 169 L. Ed. 2d 148 (2007).

Moreover, because of this strong presumption favoring a statute’s constitutionality, “those who challenge its constitutionality must sustain the heavy burden of proving its unconstitutionality beyond a reasonable doubt." (Emphasis added; internal quotation marks omitted.) Id. Our jurisprudence thus requires the highest possible standard of proof in order to sustain a challenge to the constitutionality of a statute validly enacted by our legislature. In my view, Justice Borden’s compelling opinion respects both of these fundamental, time-honored principles.

Accordingly, I respectfully dissent.

dissenting. The majority concludes that the marriage laws,1 which define marriage as the union of one man and one woman,2 classify on the basis of sexual orientation, that this classification is subject to intermediate scrutiny under article first, §§ 1 and 20, of the Connecticut constitution, as amended by articles five and twenty-one of the amendments,3 and that, under this heightened level of review, the state has failed to provide sufficient justification for limiting marriage to one man and one woman. The latter conclusion is based primarily on the majority’s unsupported assumptions that the essence of marriage is a loving, committed *323relationship between two adults and that the sole reason that marriage has been limited to one man and one woman is society’s moral disapproval of or irrational animus toward gay persons. Indeed, the majority fails, during the entire course of its 129 page opinion, even to identify, much less to discuss, the actual purpose of the marriage laws, even though this is the first, critical step in any equal protection analysis. I conclude, to the contrary, that, because the long-standing, fundamental purpose of our marriage laws is to privilege and regulate procreative conduct, those laws do not classify on the basis of sexual orientation and that persons who wish to enter into a same sex marriage are not similarly situated to persons who wish to enter into a traditional marriage. The ancient definition of marriage as the union of one man and one woman has its basis in biology, not bigotry. If the state no longer has an interest in the regulation of procreation, then that is a decision for the legislature or the people of the state and not this court. Therefore, I conclude that the equal protection provisions of the state constitution are not triggered. I further conclude that there is no fundamental right to same sex marriage. Accordingly, I dissent.

I

At the outset, I note that I agree with the majority that the trial court improperly concluded that the plaintiffs4 had failed to demonstrate a legally cognizable or actionable harm because they are entitled to enter into a legal relationship, i.e., a civil union, that confers the same legal rights as marriage. I reach this conclusion, however, for a different reason than the majority. The institution of civil union is purely a creature of statute, subject to change or repeal at the pleasure of the legislature. Marriage, on the other hand, is a fundamental *324civil right protected by the constitution.5 Although the legislature has the authority to alter the legal incidents of marriage, it presumably could not abolish the institution altogether, and would be required to apply any statutory changes uniformly to all married couples.6 Thus, contrary to the trial court’s conclusion, the difference between the two institutions is not merely one of nomenclature but has specific legal consequences for the plaintiffs. Accordingly, I conclude that the plaintiffs have raised a cognizable legal claim.

II

I turn, therefore, to the plaintiffs’ claim under the equal protection provisions of our state constitution. As the majority correctly states, “[t]he concept of equal protection [under both the state and federal constitutions] has been traditionally viewed as requiring the uniform treatment of persons standing in the same relation to the governmental action questioned or challenged. . . . Conversely, the equal protection clause places no restrictions on the state’s authority to treat dissimilar persons in a dissimilar manner. . . . Thus, [t]o implicate the equal protection [clause] ... it is necessary that the state statute ... in question, either on its face or in practice, treat persons standing in the *325same relation to it differently. . . . [Accordingly], the analytical predicate [of an equal protection claim] is a determination of who are the persons [purporting to be] similarly situated. . . . The similarly situated inquiry focuses on whether the [plaintiff is] similarly situated to another group for purposes of the challenged government action. . . . Thus, [t]his initial inquiry is not whether persons are similarly situated for all purposes, but whether they are similarly situated for purposes of the law challenged.” (Citations omitted; emphasis added; internal quotation marks omitted.) Part III of the majority opinion; see also Eielson v. Parker, 179 Conn. 552, 566, 427 A.2d 814 (1980) (“[T]he constitution does not, of course, prevent the legislature from dealing differently with different classes of people. It means only that classifications must be based on natural and substantial differences, germa,ne to the subject and purpose of the legislation, between those within the class included and those whom it leaves untouched.” [Emphasis added; internal quotation marks omitted.]). Moreover, the equal protection clause “is implicated only when a state legislature] select[s] or reaffirm [s] a particular course of action at least in part because of, not merely in spite of, its adverse effects upon an identifiable group . . . .” (Citations omitted; emphasis added; internal quotation marks omitted.) Hunt v. Cromartie, 526 U.S. 541, 558, 119 S. Ct. 1545, 143 L. Ed. 2d 731 (1999) (Stevens, J., concurring), quoting Personnel Administrator v. Feeney, 442 U.S. 256, 279, 99 S. Ct. 2282, 60 L. Ed. 2d 870 (1979). It is clear, therefore, that, in performing its equal protection analysis, the court must identify, at the outset, the group that is adversely affected by the challenged legislation and determine whether that group is similarly situated to another, differently treated group with respect to the purpose of the challenged legislation.

Without any analysis, the majority simply accepts the plaintiffs’ assertion that our state’s marriage laws *326classify persons on the basis of sexual orientation even though nothing in those laws expressly does so. It then concludes, without considering the fundamental purpose of the marriage laws, that gay persons are similarly situated to heterosexual persons with respect to those laws because they “share the same interest in a committed and loving relationship as heterosexual persons who wish to marry . . . .” Part III of the majority opinion. I cannot agree.

Because it is central to a proper equal protection analysis, I begin with the fundamental subject and purpose of our laws limiting marriage to the union of one man and one woman. As many courts have recognized, the primary societal good advanced by this ancient institution is responsible procreation.7 See Citizens for Equal Protection v. Bruning, 455 F.3d 859, 867 (8th Cir. 2006); Standhardt v. Superior Court, 206 Ariz. 276, 287, 77 P.3d 451 (App. 2003), review denied sub nom. Standhardt v. MCSC, Docket No. CV-03-0422-PR, 2004 Ariz. LEXIS 62 (Ariz. May 25, 2004); Morrison v. Sadler, 821 N.E.2d 15, 25 (Ind. App. 2005); Conaway v. Deane, 401 Md. 219, 299-300, 932 A.2d 571 (2007); Baker v. Nelson, 291 Minn. 310, 312, 191 N.W.2d 185 (1971), appeal dismissed, 409 U.S. 810, 93 S. Ct. 37, 34 L. Ed. 2d 65 (1972); Lewis v. Harris, 378 N.J. Super. 168, 185, 875 A.2d 259 (App. Div. 2005), aff'd in part and modified in part, 188 N.J. 415, 908 A.2d 196 (2006); Andersen v. *327King County, 158 Wash. 2d 1, 37, 138 P.3d 963 (2006); see also Goodridge v. Dept. of Public Health, 440 Mass. 309, 381, 798 N.E.2d 941 (2003) (Cordy, J., dissenting); cf. Hernandez v. Robles, 7 N.Y.3d 338, 359, 855 N.E.2d 1, 821 N.Y.S.2d 770 (2006). “Paramount among its many important functions, the institution of marriage has systematically provided for the regulation of heterosexual behavior, brought order to the resulting procreation, and ensured a stable family structure in which children will be reared, educated, and socialized.” (Internal quotation marks omitted.) Morrison v. Sadler, supra, 25. “The institution of marriage provides the important legal and normative link between heterosexual intercourse and procreation on the one hand and family responsibilities on the other. The partners in a marriage are expected to engage in exclusive sexual relations, with children the probable result and paternity presumed.” (Internal quotation marks omitted.) Id., 26; see also J. Root, Introduction, 1 Root (Conn.) xxvii (1789-93) (observing, with respect to laws of Connecticut, “[t]hat one man should be joined to one woman in a constant society of cohabiting together ... is necessary for the propagation of the species, and for the preservation and education of their offspring”).

It also is clear that the link between traditional marriage and procreation forms the basis of the institution’s status as a fundamental civil right under the federal constitution. See Zablocki v. Redhail, 434 U.S. 374, 384, 98 S. Ct. 673, 54 L. Ed. 2d 618 (1978) (“the right to marry, establish a home and bring up children is a central part of the liberty protected by the [d]ue [process [c]lause” [internal quotation marks omitted]); id., 386 (“if [the] right to procreate means anything at all, it must imply some right to enter the only relationship in which the [s]tate . . . allows sexual relations legally to take place”); Loving v. Virginia, 388 U.S. 1, 12, 87 S. Ct. 1817, 18 L. Ed. 2d 1010 (1967) (“[m]arriage is one *328of the basic civil rights of man, fundamental to our very existence and survival” [internal quotation marks omitted]); Skinner v. Oklahoma ex rel. Williamson, 316 U.S. 535, 541, 62 S. Ct. 1110, 86 L. Ed. 1655 (1942) (“[m]arriage and procreation are fundamental to the very existence and survival of the race”); see also Dean v. District of Columbia, 653 A.2d 307, 332-33 (D.C. 1995) (Ferren, J., concurring in part and dissenting in part); Andersen v. King County, supra, 158 Wash. 2d 30. To remove the procreative link from marriage, “which long predates the constitutions of this country and [s]tate . . . would, to a certain extent, extract some of the deep . . . root[s] that support its elevation to a fundamental right.” (Citation omitted; internal quotation marks omitted.) Samuels v. Dept. of Health, 29 App. Div. 3d 9, 15, 811 N.Y.S.2d 136 (2006).

Thus, the United States Supreme Court and many of our sister state courts have recognized that traditional marriage serves two separate but closely related functions, both deriving from the capacity of a couple comprised of one man and one woman to propagate children. First, in order to advance society’s interest in the survival of the human race, the institution of marriage honors and privileges the only sexual relationship—that between one man and one woman—that can result in the birth of a child.8 Second, in order to protect the offspring of that relationship and to ensure that society is not unduly burdened by irresponsible procreation, marriage imposes obligations on the couple to *329care for each other and for any resulting children. See Standhardt v. Superior Court, supra, 206 Ariz. 286 (“by legally sanctioning a heterosexual relationship through marriage, thereby imposing both obligations and benefits on the couple and inserting the [s]tate in the relationship, the [s]tate communicates to parents and prospective parents that their long-term, committed relationships are uniquely important as a public concern” [emphasis added]); Lewis v. Harris, supra, 378 N.J. Super. 197 (Parrillo, J., concurring) (“[p]rocreative heterosexual intercourse is and has been historically through all times and cultures an important feature of [the] privileged status [of marriage], and that characteristic is a fundamental originating reason why the [s]tate privileges marriage”).

It is obvious to me, therefore, that limiting the institution of marriage to one man and one woman does not create a classification based on sexual orientation. Rather, the limitation creates a classification based on a couple’s ability to engage in sexual conduct of a type that may result in the birth of a child. See Morrison v. Sadler, supra, 821 N.E.2d 25 (legislative classification created by marriage laws is based on “a clearly identifiable, inherent characteristic that distinguishes the two classes: the ability or inability to procreate by ‘natural’ means”); Hernandez v. Robles, supra, 7 N.Y.3d 376 (Graffeo, J., concurring) (“[T]he statutory scheme [does not] create a classification based on sexual orientation. . . . [Rather], the marriage laws create a classification that distinguishes between opposite-sex and same-sex couples . . . .”); Andersen v. King County, supra, 158 Wash. 2d 65 (law limiting marriage to marriage between one man and one woman “does not distinguish between persons of heterosexual orientation and homosexual orientation”); see also Goodridge v. Dept. of Public Health, supra, 440 Mass. 380 (Cordy, J., dissenting) (“[t]he classification is not drawn between men and *330women or between heterosexuals and homosexuals, any of whom can obtain a license to marry a member of the opposite sex; rather, it is drawn between same-sex couples and opposite-sex couples”).

It also is obvious that a couple that is incapable of engaging in the type of sexual conduct that can result in children is not similarly situated to a couple that is capable of engaging in such conduct with respect to legislation that is intended to privilege and regulate that conduct. Cf. Michael M. v. Superior Court, 450 U.S. 464, 469, 101 S. Ct. 1200, 67 L. Ed. 2d 437 (1981) (although classifications based on gender are subject to heightened scrutiny, United States Supreme Court “has consistently upheld statutes [when] the gender classification is not invidious, but rather realistically reflects the fact that the sexes are not similarly situated in certain circumstances”); id., 471 (state had sufficiently strong justification to criminalize sex with underage females, but not with underage males, because “young men and young women are not similarly situated with respect to the problems and the risks of sexual intercourse”).9 I fully agree with the majority that same sex *331couples and opposite sex couples are similar in many respects. Specifically, I agree that gay individuals are as capable of contributing to society, as desirous and capable of entering into loving and committed relationships with each other and as capable of caring for children as heterosexual persons. For purposes of an equal protection analysis, however, groups that are treated differently by a statute are not similarly situated unless they “are in all relevant respects alike.” (Emphasis added.) Nordlinger v. Hahn, 505 U.S. 1, 10, 112 S. Ct. 2326, 120 L. Ed. 2d 1 (1992). The fact that same sex couples cannot engage in sexual conduct of a type that can result in the birth of a child is a critical difference in this context.10

*332In reaching a contrary conclusion, the majority apparently relies on the notion that the disparate impact of the marriage laws on gay persons who wish to enter into marriage creates a classification on the basis of sexual orientation. It is well settled, however, that the constitutional guarantee of equal protection is implicated only when “a state legislatur[e] . . . selected or reaffirmed a particular course of action at least in part because of, not merely in spite of, its adverse effects [on] an identifiable group.”11 (Emphasis added; internal *333quotation marks omitted.) Personnel Administrator v. Feeney, supra, 442 U.S. 279; see also Harris v. McRae, 448 U.S. 297, 324 n.26, 100 S. Ct. 2671, 65 L. Ed. 2d 784 (1980) (constitutional equal protection principles prohibit “only purposeful discrimination . . . and when a facially neutral . . . statute is challenged on equal protection grounds, it is incumbent [on] the challenger to prove that [the legislature] selected or reaffirmed a particular course of action at least in part because of, not merely in spite of, its adverse effects [on] an identifiable group” [citation omitted; internal quotation marks omitted]); Pasquariello v. Stop & Shop Cos., 281 Conn. 656, 673, 916 A.2d 803 (2007) (“[disparate impact ... is only a starting point in analyzing an equal protection claim”). Even if the existence of a history of societal disapproval of homosexual conduct is assumed, the majority has not pointed, and cannot *334point, to any evidence that the driving force behind the development of traditional marriage between one man and one woman has been irrational, discriminatory animus toward gay persons.12 Indeed, even the laws criminalizing homosexual conduct were not originally driven by such animus. See, e.g., Lawrence v. Texas, 539 U.S. 558, 568, 123 S. Ct. 2472, 156 L. Ed. 2d 508 (2003) (“early American sodomy laws were not directed at homosexuals as such but instead sought to prohibit nonprocreative sexual activity more generally”); id., 570 (“American laws targeting same-sex couples did not develop until the last third of the [twentieth] century”). It is also worth noting that even societies in which homosexual conduct was the norm and was well accepted have not recognized same sex marriage.13 See *335generally M. Nussbaum, “Platonic Love and Colorado Law: The Relevance of Ancient Greek Norms to Modem Sexual Controversies,” 80 Va. L. Rev. 1515 (1994). The absence of any evidence of intentional discrimination, in and of itself, is fatal to the plaintiffs’ equal protection claim. See, e.g., Harris v. McRae, supra, 324 n.26.

Having concluded without any basis that the marriage laws classify on the basis of sexual orientation, the majority then concludes that same sex couples are similarly situated to opposite sex couples with respect to the marriage laws because gay persons “share the same interest in a committed and loving relationship as heterosexual persons who wish to marry.” The majority, however, makes no attempt to explain why the state ever would have had an interest in promoting or regulating committed and loving relationships that have no potential to result in the birth of a child. It simply assumes that loving commitment between two adults is the essence of marriage, even though the essence of marriage is the very question at the heart of this case.14

*336The majority then compounds this question begging methodology by suggesting that “preserving the institution of marriage as a union between a man and a woman is the overriding reason why same sex couples have been barred from marrying in this state.”15 In other *337words, the majority purports to believe that the primary justification for limiting marriage to one man and one woman is that “marriage is heterosexual because it just is . . . .” (Internal quotation marks omitted.) Conaway v. Deane, supra, 401 Md. 427 (Bell, C. J., dissenting). Thus, the majority simply assumes at the outset of its analysis the answer to the central question in the case and then declines even to address the only argument— that marriage was intended to privilege and regulate sexual conduct that may result in the birth of a child— that any court ever has found to be persuasive in determining that that answer is incorrect. For the reasons that I have stated, I cannot agree.

Ill

Because I would conclude that the plaintiffs cannot prevail on their equal protection claim, I must address their substantive due process claim under article first, *338§§ 8 and 10, of the Connecticut constitution.16 The plaintiffs contend that two consenting, unrelated adults have a fundamental right to marry regardless of their respective sexes. I disagree. I further conclude that there is a rational basis for limiting marriage to one man and one woman.

A

I first address the plaintiffs’ claim that any two consenting, unrelated adults have a fundamental right to marry regardless of their respective sexes. “Our substantive due process case law under the state constitution . . . clearly establishes that certain fundamental rights are protected.” Ramos v. Vernon, 254 Conn. 799, 835 n.31, 761 A.2d 705 (2000). Under the federal constitution, “the due process clause protects those fundamental rights and liberties which are, objectively, deeply rooted in this [n]ation’s history and tradition . . . and implicit in the concept of ordered liberty, such that neither liberty nor justice would exist if they were sacrificed .... Our [n]ation’s history, legal traditions, and practices thus provide the crucial guideposts for responsible decisionmaking . . . that direct and restrain our exposition of the [d]ue [p]rocess [c]lause.” (Internal quotation marks omitted.) Hammond v. Commissioner of Correction, 259 Conn. 855, 888-89, 792 A.2d 774 (2002). The plaintiffs do not claim that a different test should apply under the state constitution. When state action affects a fundamental right, it is subject to strict scrutiny. E.g., Rayhall v. Akim Co., 263 Conn. 328, 342, 819 A.2d 803 (2003).

As I have indicated, the right of one man and one woman to marry has been recognized as a fundamental right under the federal constitution. See Zablocki v. Redhail, supra, 434 U.S. 384; Loving v. Virginia, supra, *339388 U.S. 12; Skinner v. Oklahoma ex rel. Williamson, supra, 316 U.S. 541. As I also have indicated, the link between marriage and procreation forms the basis of that fundamental right. For this reason, and for the reasons cogently set forth in Justice Borden’s dissenting opinion, it is clear to me that the fundamental right to marry is limited to couples comprised of one man and one woman.17 There simply is no deeply rooted history, tradition or practice of same sex marriage, or of marriage defined as a loving, committed relationship, in this nation or in this state.

Indeed, to the contrary, the relationship between men and women and the procreative potential of that relationship were the defining concerns of marriage long before the social compact that is our state constitution came into existence. The preamble to our state constitution provides in relevant part: “The People of Connecticut ... do, in order more effectually to define, secure, and perpetuate the liberties, rights and privileges which they have derived from their ancestors-, hereby, after a careful consideration and revision, ordain and establish the . . . constitution and form of civil government.”18 (Emphasis added.) Thus, the express and *340fundamental purpose of this social compact is to guarantee the right of the people to preserve their basic institutions, traditions and beliefs, assuming, of course, that they do not intrude on other constitutionally protected rights in doing so. As I have indicated, I am quite certain that preserving the institution of traditional marriage between one man and one woman does no such thing. Accordingly, although the deeply rooted and rationally based cultural preference for traditional marriage, and the institution’s attendant liberties, rights and privileges, may be subject to change in light of new information and experiences, any such change is emphatically not for this court but is quintessentially a matter to be decided by the people through the democratic process.19 “The virtue of a democratic system ... is that it readily enables the people, over time, to be persuaded that what they took for granted is not so, *341and to change their laws accordingly. That system is destroyed if the smug assurances of each age are removed from the democratic process and written into the [constitution.” United States v. Virginia, 518 U.S. 515, 567, 116 S. Ct. 2264, 135 L. Ed. 2d 735 (1996) (Scalia, J., dissenting).

B

Having concluded that there is no fundamental right to same sex marriage, I next must determine whether there is a rational basis for the laws limiting marriage to one man and one woman. See, e.g., Ramos v. Vernon, supra, 254 Conn. 840-41 (rational basis review applies to substantive due process claims that do not implicate fundamental rights). “In determining whether the challenged classification is rationally related to a legitimate public interest . . . [t]he test ... is whether this court can conceive of a rational basis for sustaining the legislation; we need not have evidence that the legislature actually acted [on] that basis. . . . Further, the [e]quai [protection [c]lause does not demand for purposes of rational-basis review that a legislature or governing decisionmaker actually articulate at any time the purpose or rationale supporting its classification. . . . Rational basis review is satisfied [as] long as there is a plausible policy reason for the classification .... [I]t is irrelevant whether the conceivable basis for the challenged distinction actually motivated the legislature. ... To succeed, the party challenging the legislation must negative every conceivable basis which might support it . . . .” (Citation omitted; internal quotation marks omitted.) Contractor’s Supply of Waterbury, LLC v. Commissioner of Environmental Protection, 283 Conn. 86, 93, 925 A.2d 1071 (2007).

In my view, the state’s interests in promoting and regulating procreative conduct are legitimate. Indeed, they are compelling. I further believe that limiting marriage to one man and one woman is rationally related *342to the advancement of those interests. First, the state rationally could conclude that “[t]he power of biological ties means that heterosexual families are most likely to achieve stability and successfully perform the child-rearing function.” A. Wax, “The Conservative’s Dilemma: Traditional Institutions, Social Change, and Same-Sex Marriage,” 42 San Diego L. Rev. 1059, 1077 (2005). Second, and relatedly, the state rationally could conclude that children do best when they are raised by a mother and a father, a belief that finds great support in life experience and common sense.20 See K. Young & P. Nathanson, “Marriage á la mode: Answering the Advocates of Gay Marriage” (2003), available at http:// www.marriageinstitute.ca/images/mmode.pdf.21 This *343belief does not denigrate the parenting abilities of same sex couples but merely recognizes that a high level of individual parenting ability is no substitute for having both a mother and a father. Third, the benefits and social status associated with traditional marriage encourage men and women to enter into a state, namely, long-term, mutually supported cohabitation, that is conducive both to procreation and responsible child rearing on the part of the biological parents.22 I acknowledge that these rationales, although supported by experience and common sense, are fact based and are open to debate. The burden is on the plaintiffs, however, to establish why none of these reasons provides a conceivable basis for the deeply rooted societal preference for families with a mother and a father.

The plaintiffs rely on several sociological studies that have concluded that “children of same sex parents are *344as healthy, happy and well adjusted, and fare as well on all measures of development, as their peers.” These studies, however, are far from conclusive.23 Moreover, “[t]he story of the controversy surrounding out-of-wedlock childbearing . . . illustrates the point that knowledge often comes too late. There is a necessary lag between the instigation of a social change and the generation of persuasive evidence on its ultimate effects.” A. Wax, supra, 42 San Diego L. Rev. 1087. Thus, it is entirely reasonable for the state to be cautious about implementing genderless marriage, the long-term effects of which cannot be known beforehand with any degree of certainty.

The plaintiffs also contend that procreation has “[n]ever” been the purpose of marriage. (Emphasis added.) In support of this startling claim, the plaintiffs note that opposite sex couples who choose not to procreate or who are incapable of procreating are not and never have been prohibited from marrying. Even if the institution of marriage is overinclusive, however, “[a] [s]tate does not violate the [e]qual [protection [c]lause merely because the classifications made by its laws are imperfect. If the classification has some reasonable basis, it does not offend the [constitution simply because the classification is not made with mathematical nicety or because in practice it results in some inequality. . . . The problems of government are practical ones and may justify, if they do not require, rough accommodations—illogical, [though] it may be, and unscientific.” (Citation omitted; internal quotation *345marks omitted.) Dallas v. Stanglin, 490 U.S. 19, 26-27, 109 S. Ct. 1591, 104 L. Ed. 2d 18 (1989); see also Vance v. Bradley, 440 U.S. 93, 108, 99 S. Ct. 939, 59 L. Ed. 2d 171 (1979) (“[e]ven if the classification involved . . . is to some extent . . . overinclusive, and hence the line drawn by [the legislature] imperfect, it is nevertheless the rule that . . . perfection is by no means required” [internal quotation marks omitted]).

I also would note that married couples who choose not to procreate can change their minds. In addition, until very recently, the nature and causes of infertility were not well understood and it was impossible to predict with certainty whether a marriage that appeared to be barren ultimately would prove to be so. Under such circumstances, the requirement that a married couple consist of one man and one woman was the requirement that the couple be able to procreate.24 In any event, requiring proof of intent and ability to procreate prior to—and, presumably, during the course of— marriage would entangle the state in procedures that are grossly intrusive, ever-changing and counterproductive. “Marriage’s social role does not rest on any ironclad, exceptionless demand that all couples actually achieve the optimum arrangement. Nor does the channeling function require the elimination of all relationships that fall short of the ideal [of procreative marriage]. After all, adhering to an airtight rule [that a *346couple must be willing and able to procreate in order to marry] would itself entail costs and intrusions. Such adherence would fail to accommodate the untidy, unpredictable nature of male-female relationships and the imperfect state of knowledge that prevents infallible prediction about biological functioning.” A. Wax, supra, 42 San Diego L. Rev. 1078-79.

The plaintiffs further claim that a state policy based on a belief that marriage between one man and one woman promotes responsible procreation is precluded both by the civil union law, General Statutes § 46b-38aa et seq., and by General Statutes § 45a-727a (3), which provides that, for purposes of adoption, “[t]he best interests of a child are promoted when the child is part of a loving, supportive and stable family, whether that family is a nuclear, extended, split, blended, single parent, adoptive or foster family . . . .” Specifically, the plaintiffs contend that, because “the civil union law provides the same state based legal protections and obligations with respect to children for same sex couples as for married couples,” and because § 45a-727a (3) evinces “a legislative policy that family configuration is not a relevant factor in determining the best interests of children . . . any proffered issue related to the welfare of children must be legally irrelevant as a reason that the state denies marriage to same sex couples.” I am not persuaded. I see no reason why the state rationally could not continue to promote the public’s vital interest in responsible procreation by limiting marriage to opposite sex couples while enacting a civil union law in recognition of the legitimate interests of same sex couples.25 In other words, the state reasonably could *347believe that limiting marriage to a man and a woman accomplishes vital social goods, while the institution of civil union promotes the legitimate interests of those who enter into it. Recognition of the latter private interests does not necessarily entail abandonment of the former public interests.

With respect to the adoption laws, the legislative history of § 45a-727a (3) indicates that the statute was intended to address the situation in which “a person already sharing parental responsibility for a child [is prevented] from adopting a child even when absolutely everyone involved agrees that such an adoption would be in the best interest of the child.” Conn. Joint Standing Committee Hearings, Judiciary, Pt. 9,2000 Sess., p. 2773, testimony of Reverend Mark Santucci; see also id., p. 2864, testimony of Representative Patrick Flaherty (“[t]he bill makes it possible for a child who has one parent to be adopted by a second person who shares parental responsibilities for that child”).26 The state reasonably could recognize that “[t]he best interests of a child are promoted when the child is part of a loving, supportive and stable family”; General Statutes § 45a-727a (3); regardless of the sex of the child’s statutory and adoptive parents, while rationally concluding that the ideal family consists of both a mother and a father. In other words, if the choice is between one parent and two parents, there is no reason for the state ever to prefer one parent. If the choice is between two same *348sex parents and two opposite sex parents, however, there are reasons for the state to promote the latter. Indeed, General Statutes § 45a-727a (4) expressly provides that “the current public policy of the state of Connecticut is now limited to a marriage between a man and a woman.” The inclusion of this provision, which defines the state’s policy regarding the best interests of a child, in the adoption statutes clearly indicates that the legislature believes that limiting marriage to one man and one woman is in the best interests of children as a class.27 This conclusion is further supported by General Statutes § 45a-727b, which expressly provides that “[n]othing in . . . section . . . 45a-727a . . . shall be construed to establish or constitute an endorsement of any public policy with respect to marriage, civil union or any other form of relation between unmarried persons . . . .’’In addition, General Statutes § 45a-726a provides in relevant part that “[n]othing in th[at] section shall be deemed to require the Commissioner of Children and Families or a child-placing agency to place a child for adoption or in foster care with a prospective adoptive or foster parent or parents who are homosexual or bisexual.”

The plaintiffs also contend that the state could not rationally conclude that extending marriage to same sex couples would prevent procreation and child rearing by opposite sex couples. I agree with the plaintiffs that it is doubtful whether any state policy could entirely *349prevent men and women from procreating. As I have indicated, however, the state could rationally conclude that honoring and privileging marriage between one man and one woman as the ideal setting for procreation is conducive both to procreation and to responsible child rearing, and that redefining marriage to be a loving, committed relationship between two adults could have a significant effect on the number of opposite sex couples who choose to procreate and raise children together. See footnote 15 of this opinion.

Finally, I address the plaintiffs’ claim that, even if there once was a link between procreation and marriage, such a link was based on sexual stereotypes and other outdated notions about the nature of family life, and such notions are no longer viable in light of the “steady legal, sociological and economic developments since the late nineteenth century . . . .” They contend that “[m]arriage is now an institution of legal equality between . . . two parties whose respective rights and responsibilities are equal, mutual and reciprocal. The state’s astonishing insistence on resurrecting legal restrictions that pigeonhole individuals ... on [the basis of] broad generalizations about sex roles flies in the face of rudimentary sex discrimination law.” It is undisputed that the role of women in public and economic life has increased dramatically in the last century and that women have achieved an unprecedented degree of equality with men in our nation. That does not mean, however, that the procreative roles of men and women have changed or that there is no distinction between the parenting roles of men and women.28

*350In any event, even if the plaintiffs were correct that procreation is no longer at the center of the institution of marriage, that would not help them. As I have indicated, the reason that marriage between one man and one woman historically has had a privileged social status and has been considered a constitutionally protected fundamental right has been society’s special concern with procreative conduct. If the link between marriage and procreation were destroyed, then the elevated social and constitutional status of marriage in our society also would be destroyed, and marriage would be nothing but a set of statutory rights and obligations, which is exactly what civil union is. In that case, the trial court would have been correct to conclude that the difference between the two institutions was merely a matter of nomenclature.

Accordingly, I reject the plaintiffs’ claim, and the majority’s conclusion, that redefining marriage to include same sex couples takes nothing away from the institution. See part VIE of the majority opinion (redefining marriage “would expand the right to marry without any adverse effect on those already free to exercise the right” [emphasis in original]). The redefinition of marriage takes away society’s special concern with the institution as one involving the great societal risks and benefits of procreative conduct. The majority’s reliance on Loving v. Virginia, supra, 388 U.S. 1, in support of its conclusion to the contrary is entirely misplaced. See part VI E of the majority opinion (recognizing right to same sex marriage “[will] not disturb the fundamental value of marriage in our society and . . . will not diminish the validity or dignity of opposite-sex marriage . . . any more than recognizing the right of an individual to marry a person of a different race devalues the marriage of a person who marries someone of [his or] her own race” [internal quotation marks omitted]), quoting Goodridge v. Dept. of Public Health, supra, *351440 Mass. 337. The laws criminalizing miscegenation intruded on the fundamental right to procreate, and the constitutional prohibition against this intrusion recognizes and enhances the special status of procreative conduct. Redefining marriage to include same sex couples has no such purpose or effect.

IV

Although there is no need for me to reach many of the other issues that the majority addresses, I am compelled to state that I am extremely troubled by several aspects of its analysis. First, as Justice Vertefeuille notes in her dissenting opinion, those who challenge the constitutionality of legislation “must sustain the heavy burden of proving its unconstitutionality beyond a reasonable doubt.” (Emphasis added; internal quotation marks omitted.) State v. McKenzie-Adams, 281 Conn. 486, 500, 915 A.2d 822, cert. denied, 552 U.S. 888, 128 S. Ct. 248, 169 L. Ed. 2d 148 (2007). Instead of requiring the plaintiffs to meet this heavy burden, the majority bases its opinion on entirely unfounded assumptions about the subject and purpose of our marriage laws, the classification created by them and their discriminatory intent. Not only have the plaintiffs failed to establish these matters beyond a reasonable doubt, they have failed to present any evidence to support the majority’s conclusions.

Second, the majority states that “[t,]his court also has determined that, for purposes of the state constitution, [the] two-tier analysis of the law of equal protection . . . that distinguishes only between legislation requiring strict scrutiny, which typically fails to pass constitutional muster, and legislation requiring a rational basis, which typically does pass, is not sufficiently precise to resolve all cases. Legislation that involves rights that may be significant, though not fundamental, or classifications that are sensitive, though not suspect, may *352demand some form of intermediate review.” (Internal quotation marks omitted.) Part III of the majority opinion, quoting Eielson v. Parker, supra, 179 Conn. 564. Contrary to this statement, we never have made any such determination. Our statements in Eielson, in Daly v. DelPonte, 225 Conn. 499, 513, 624 A.2d 876 (1993), and in Keogh v. Bridgeport, 187 Conn. 53, 67, 444 A.2d 225 (1982), that the state constitution might recognize intermediate scrutiny were dicta and were unsupported by any analysis of the text of the equal protection provisions of the Connecticut constitution. In Carofano v. Bridgeport, 196 Conn. 623, 495 A.2d 1011 (1985), we assumed without deciding that laws affecting “the liberty of a person to live where he chooses while maintaining employment with a municipality” were subject to intermediate scrutiny. Id., 642. In light of the significant differences between the equal protection provisions of the state and federal constitutions, I have serious doubts as to whether intermediate scrutiny ever is appropriate under the state constitution.

Third, I am troubled by the majority’s analysis under State v. Geisler, 222 Conn. 672, 685, 610 A.2d 1225 (1992). Historically, this court has used the Geisler analysis to determine the scope of a right under the state constitution. I am not aware of, and the majority has not cited, any cases in which we have used Geisler to determine whether the Connecticut constitution recognizes a suspect class that has not been recognized under the federal constitution. Indeed, Geisler was not mentioned in any of the cases to which the majority cites in support of its conclusion that intermediate scrutiny has been applied under the state constitution.

Moreover, none of the six Geisler factors supports a conclusion that sexual orientation is a quasi-suspect class in this state. With respect to the first Geisler factor, the text of the state constitutional provisions, I am not persuaded by the majority’s analysis for the reasons *353that I already have stated. The cases that the majority relies on for the proposition that the state constitution contemplates quasi-suspect classifications do not support such a conclusion, and the majority has not squarely addressed the textual differences between the state and federal constitutions.

Because the majority’s analysis under Geisler’s second factor, decisions of this court and the Appellate Court, and the third factor, decisions of the federal courts, are closely intertwined, I address them together. The majority acknowledges that the Appellate Court and virtually all federal courts have concluded that sexual orientation is not a suspect classification but rejects the reasoning of these courts because they “relied on the holding of Bowers v. Hardwick, [478 U.S. 186, 106 S. Ct. 2841, 92 L. Ed. 2d 140 (1986), overruled by Lawrence v. Texas, supra, 539 U.S. 558], in which the United States Supreme Court upheld the constitutionality of a Georgia statute that criminalized homosexual sodomy.” These courts have concluded that, because it is constitutionally permissible to criminalize homosexual conduct, a group that is defined by that conduct cannot be a quasi-suspect class. See, e.g., Ben-Shalom v. Marsh, 881 F.2d 454, 464-65 (7th Cir. 1989), cert. denied sub nom. Ben-Shalom v. Stone, 494 U.S. 1004, 110 S. Ct. 1296, 108 L. Ed. 2d 473 (1990); cf. State v. John M., 94 Conn. App. 667, 678-84, 894 A.2d 376 (2006), rev’d on other grounds sub nom. State v. John F.M., 285 Conn. 528, 940 A.2d 755 (2008). The majority notes that Bowers was overruled by Lawrence v. Texas, supra, 558, and concludes that, “after Lawrence, the social and moral disapprobation that gay persons historically have faced supports their claim that they are entitled to heightened protection under the state constitution.” Part VI C of the majority opinion.

The majority may be correct on this point, which it already has made in the first part of its analysis applying *354the federal test for determining suspect classifications, but it is not the point that is under consideration. Under these two prongs of Geisler, the question is whether the courts of this state or federal courts ever have concluded that sexual orientation is a quasi-suspect classification. If the answer to that question is no, but the reasoning of cases in which that classification has been rejected is not persuasive, then it may be that these cases do not weigh against this court’s determination that sexual orientation is a quasi-suspect classification. It cannot be said, however, that the cases support such a determination. Thus, at best, the second and third Geisler factors are neutral.

Similarly, with respect to the fourth prong of Geisler, the decisions of our sister states, if the majority is not persuaded by the reasoning of the majority of state courts that have concluded that sexual orientation is not a suspect class, then the factor is neutral, at best. The fact that only a small minority of states agree with the majority’s independent analysis under the federal test cannot be considered as favoring the plaintiffs’ claim.

The majority declines to address the fifth prong of Geisler, the history of our state’s equal protection provisions, because, according to the majority, “[n]either the plaintiffs nor the defendants contend that the history of this state’s equal protection provisions . . . bears materially on the determination of whether [sexual orientation is] a quasi-suspect class[ification].” Footnote 73 of the majority opinion. To the contrary, however, the defendants expressly contend that “nothing in Connecticut’s ‘unique historical record’ supports the conclusion that [the equal protection] provisions of the state constitution . . . were intended to protect sexual orientation as a suspect classification” and that “it is not possible to conclude that the framers intended [these provisions] to protect sexual orientation as a suspect *355classification . . . ,”29 The plaintiffs do not rebut this contention and point to nothing in the history of our constitution that would support a conclusion that the framers or the people of the state believed that gay persons would receive special protection under the equal protection provisions. Accordingly, I would conclude that this factor weighs in favor of the defendants.

With respect to the sixth Geisler factor, economic and sociological considerations, the majority focuses on the effect that denying marriage to same sex couples purportedly has on same sex couples and their children. The question under review, however, is whether the state constitution requires this court to treat sexual orientation as a suspect classification, not the constitutionality of excluding same sex couples from marriage. In my view, this Geisler factor requires this court to examine existing cultural and economic conditions in the state in order to determine whether Connecticut citizenry have expectations that are not adequately protected by the federal constitution. Cf. State v. Bernier, *356246 Conn. 63, 72, 717 A.2d 652 (1998) (“[t]he analysis focuses on whether Connecticut citizenry [are] prepared, because of [their] code of values and [their] notions of custom and civility to [recognize heightened protection under the state constitution]” [internal quotation marks omitted]). The majority has pointed to no specific “values [or] . . . notions of custom and civility”; id.; in this state that would lead to the conclusion that Connecticut citizenry have expectations about laws classifying on the basis of sexual orientation that differ from those shared by the rest of the country, thereby requiring this court to subject the laws to heightened scrutiny. Instead, the majority apparently concludes that it must determine whether barring same sex marriage would have a disparate impact on gay persons because, if so, then sexual orientation must be a suspect classification; otherwise, the state would not be required to provide strong justification for that disparate impact.30 The majority ultimately concludes that, because barring same sex couples from marriage could lead some gay persons to feel like second-class citizens, this prong “militates strongly in favor of the [plaintiffs’ claim].”31 Part VIE of the majority opinion. The majority has cited no authority, however, for the novel proposition that the potential negative impact of legislation on a particular group is a factor in determining whether *357the group constitutes a suspect class.32 Moreover, its reasoning is entirely circular, and, like the reasoning throughout the majority opinion, omits any reference to the actual interest of the citizenry in preserving the institution of traditional marriage despite any disparate impact that it may have on gay persons. Finally, as I have indicated, in the absence of intentional discrimination, a law’s disparate impact on a particular group does not implicate equal protection principles. Accordingly, I am distinctly unpersuaded by the majority’s Geisler analysis. Indeed, it is apparent to me that these factors weigh in the defendants’ favor.

V

Contrary to the majority’s purported belief that society’s sole justification for preserving traditional marriage between one man and one woman is the tautological claim that “marriage is heterosexual because it just is”; (internal quotation marks omitted) Conaway v. Deane, supra, 401 Md. 427 (Bell, C. J., dissenting); there are powerful reasons for preserving the institution. In concluding otherwise, the majority deliberately has closed its eyes to those reasons, has failed to engage in a proper analysis under the equal protection provisions of our state constitution and has distorted our state constitutional jurisprudence as set forth in Geisler. Indeed, in my view, the sole basis for the majority’s conclusion that traditional marriage is no longer constitutional is the majority’s a priori, unsubstantiated belief that “it just isn’t.” “Thus, the majority has [abused] this court’s power to interpret the constitution in order to mandate a vast and unprecedented social experiment”; Sheff v. O’Neill, 238 Conn. 1, 61, 678 A.2d 1267 (1996) (Borden, J., dissenting); the results *358of which will be beyond the power of both this court and the people of this state to correct.

Accordingly, I reject the majority’s conclusion that limiting marriage to one man and one woman is unconstitutional. If the state’s interests in promoting and regulating procreation are no longer sufficient to warrant the continuation of traditional marriage, then the decision to terminate that ancient institution is appropriate for the democratically elected legislature. To end an institution that the plaintiffs contend is time honored and special by judicial fiat is a usurpation of the legislative prerogative and a violation of the fundamental right of the people, on which the very existence of our constitution is premised, “to define, secure and perpetuate the liberties, rights and privileges which they have derived from their ancestors . . . .” Conn. Const., preamble.

Opinion

The issue presented by this case is whether the state statutory prohibition against same sex marriage violates the constitution of Connecticut. The plaintiffs, eight same sex couples, commenced this action, claiming that the state statutory prohibition against same sex marriage violates their rights to substantive due process and equal protection under the state constitution. The trial court rendered summary judgment in favor of the defendant state and local officials upon determining that, because this state’s statutes afford same sex couples the right to enter into a civil union, which affords them the same legal rights as marriage, the plaintiffs had not established a constitutionally cognizable harm. We conclude that, in light of the history of pernicious discrimination faced by *141gay men and lesbians,1 and because the institution of marriage carries with it a status and significance that the newly created classification of civil unions does not embody, the segregation of heterosexual and homosexual couples into separate institutions constitutes a cognizable harm. We also conclude that (1) our state scheme discriminates on the basis of sexual orientation, (2) for the same reasons that classifications predicated on gender are considered quasi-suspect for purposes of the equal protection provisions of the United States constitution, sexual orientation constitutes a quasi-suspect classification for purposes of the equal protection provisions of the state constitution, and, therefore, our statutes discriminating against gay persons are subject to heightened or intermediate judicial scrutiny, and (3) the state has failed to provide sufficient justification for excluding same sex couples from the institution of marriage. In light of our determination that the state’s disparate treatment of same sex couples is constitutionally deficient under an intermediate level of scrutiny, we do not reach the plaintiffs’ claims implicating a stricter standard of review, namely, that sexual orientation is a suspect classification, and that the state’s bar against same sex marriage infringes on a fundamental right in violation of due process and discriminates on the basis of sex in violation of equal protection. In accordance with our conclusion that the statutory scheme impermissibly discriminates against gay persons on account of their sexual orientation, we reverse the trial court’s judgment and remand the case with direction to grant the plaintiffs’ motion for summary judgment.

The record reveals the following undisputed facts and procedural history. On August 24, 2004, the plain*142tiffs,2 eight same sex couples who applied for and were denied marriage licenses by the town of Madison, commenced this action, seeking a declaratory judgment and injunctive relief against the defendants, J. Robert Galvin, in his official capacity as commissioner of the state department of public health, and Dorothy Bean, in her official capacity as acting town clerk and deputy registrar of vital statistics of the town of Madison. The plaintiffs sought, inter alia, a judgment declaring that, to the extent that any statute, regulation or common-law rule precludes otherwise qualified individuals from marrying someone of the same sex, or because they are gay or lesbian couples, such statutes, regulations and common-law rules violate various provisions of the state constitution, including the due process provisions of article first, §§ 83 and 10,4 and the equal protection provisions of article first, §§ 15 and 20, as amended.6 *143The plaintiffs did not raise any claims under the United States constitution. The plaintiffs also sought an order directing Bean to issue a marriage license to each couple and the department of public health to register the plaintiffs’ marriages once they were performed.7

While the plaintiffs’ action was pending in the trial court, the legislature passed Public Acts 2005, No. 05-10, now codified at General Statutes § 46b-38aa et seq. (civil union law), which established the right of same sex partners to enter into civil unions and conferred on such unions all the rights and privileges that are granted to spouses in a marriage. See General Statutes § 46b-38nn;8 see also General Statutes (Sup. 2008) § 46b-38oo.9 Under the civil union law, however, “marriage” is defined as “the union of one man and one woman.” General Statutes § 46b-38nn. In light of this intervening statutory development, the parties narrowed the issue posed by this action to whether the civil union law and *144its prohibition against same sex marriage pass muster under the state constitution.

Thereafter, the parties filed cross motions for summary judgment. In support of the plaintiffs’ motion, they claimed, inter alia, that this state’s statutes governing marriage and civil unions violate the due process and equal protection provisions of the state constitution because they deprive gay persons of the fundamental right to marry the person of their choice, and because they discriminate on the basis of both sex and sexual orientation. With respect to their due process claim, the plaintiffs maintained that, because marriage is a fundamental right, the state bears the burden of demonstrating that any abridgement of the right has been narrowly tailored to effectuate a compelling state interest, a burden which, the plaintiffs contended, the state cannot meet.

With respect to their equal protection claims, the plaintiffs maintained that, by limiting marriage to the union of a man and a woman, our statutory scheme impermissibly segregates on the basis of sex in violation of the express prohibition against such treatment contained in article first, § 20, of the state constitution, as amended by article five of the amendments. The plaintiffs contended that this state’s statutes contravene the state constitutional prohibition against sex discrimination because those statutes preclude a woman from doing what a man may do, namely, marry a woman, and preclude a man from doing what a woman may do, namely, marry a man. The plaintiffs also maintained that our laws barring same sex marriage impermissibly discriminate against gay persons, who, the plaintiffs claimed, constitute a suspect class or, at the least, a quasi-suspect class, under constitutional principles of *145equal protection.10 In particular, the plaintiffs maintained that, because they are members of a suspect or quasi-suspect class, the state cannot discriminate against them in the absence of an exceptionally strong justification for doing so, a justification that the plaintiffs contended does not exist.

In support of the defendants’ motion for summary judgment, they asserted that the plaintiffs had failed to demonstrate that they have suffered any harm as a result of the statutory bar against same sex marriage because, under the civil union law, gay persons are entitled to all of the rights that married couples enjoy. The defendants also maintained that this state’s ban on same sex marriage does not deprive the plaintiffs of a fundamental right because, since ancient times, marriage has been understood to be the union of a man and a woman, and only such rights that are “deeply rooted in this [njation’s history and tradition . . . and implicit in the concept of ordered liberty” are deemed to be fundamental. (Citations omitted; internal quotation marks omitted.) Washington v. Glucksberg, 521 U.S. 702, 721, 117 S. Ct. 2258, 138 L. Ed. 2d 772 (1997). The defendants contended that, in light of the universally understood definition of marriage as the union of a man and a woman, the right that the plaintiffs were asserting, namely, the right to marry “any person of one’s choosing,” is not a fundamental right.

The defendants also asserted that our statutory scheme does not discriminate on the basis of sex because, inter alia, it does not single out men or women as a class for disparate treatment, the touchstone of any sex discrimination claim. Those laws also do not discriminate on the basis of sexual orientation, the *146defendants maintained, because gay persons are not prohibited from marrying. According to the defendants, our laws are facially neutral because they treat homosexual and heterosexual persons alike by providing that anyone who wishes to marry may do so with a person of the opposite sex.

Finally, the defendants asserted that, even if the statutory definition of marriage as an opposite sex union does discriminate on the basis of sexual orientation, nothing in the text or history of article first, § 1, and article first, § 20, as amended by articles five and twenty-one of the amendments, supports the conclusion that the drafters of those provisions intended to extend special protection to gay persons as a suspect or quasi-suspect class. On the contrary, the defendants maintained that, because sexual orientation is not one of the eight categories enumerated in article first, § 20, of the state constitution, as amended, namely, religion, race, color, ancestry, national origin, sex, and physical or mental disability, it must be presumed that that provision does not afford enhanced protection to persons on the basis of their sexual orientation. The defendants finally maintained that our statutory scheme does not run afoul of the state constitution’s equal protection provisions because it bears a rational relationship to a legitimate state purpose, the test that the defendants asserted is applicable to the determination of whether that scheme passes muster under the equal protection provisions of the state constitution.

The trial court granted the defendants’ motion for summary judgment and denied the plaintiffs’ motion for summary judgment. Kerrigan v. Commissioner of Public Health, 49 Conn. Sup. 644, 667, 909 A.2d 89 (2006). The trial court concluded that the plaintiffs could not establish “that they have suffered any legal harm that rises to constitutional magnitude”; id., 646; because “[t]he effect of [the civil union law] has been *147to create an identical set of legal rights in Connecticut for same sex couples and opposite sex couples.” Id., 655. The trial court further observed that, if the legislature had not passed the civil union law while the plaintiffs’ case was pending before it, the court then would have been required to undertake a traditional constitutional analysis of their claims. Id., 654. The court reasoned, however, that the passage of the civil union law had rendered that analysis unnecessary because the plaintiffs no longer could establish that the laws of the state, either on their face or as applied, treat same sex couples differently than opposite sex couples. See id., 655, 658-59. In so concluding, the trial court expressly rejected the plaintiffs’ claim that the legislature’s “creation of the civil union for same sex couples, while retaining the status of marriage for opposite sex couples, has the effect of creating for them a legal institution of lesser status.” Id., 658. The court explained: “[Although] the plaintiffs may feel themselves to be relegated to a second class status, there is nothing in the text of the Connecticut statutes that can be read to place the plaintiffs there.” Id.

On appeal,11 the plaintiffs challenge the trial court’s determination that Connecticut’s civil union law does not discriminate against gay persons because same sex couples who have entered into a civil union are entitled to the same legal rights under state law as married couples. The plaintiffs also renew the various state constitutional claims that they raised in the trial court. We conclude, first, that the trial court improperly determined that the distinction between civil unions and marriage is constitutionally insignificant merely because a same sex couple who enters into a civil union enjoys the same legal rights as an opposite sex couple *148who enters into a marriage. We also conclude that our statutory scheme governing marriage impermissibly discriminates against gay persons on the basis of their sexual orientation.

I

DECISION OF THE TRIAL COURT

We first address the plaintiffs’ contention that the trial court improperly granted the defendants’ motion for summary judgment on the ground that the plaintiffs had failed to demonstrate any legally cognizable or actionable harm by virtue of the fact that the legislature had established two separate and distinct classifications for couples who wish to be recognized by the law, one limited to same sex couples and one limited to opposite sex couples. The trial court predicated its determination on the fact that a couple who enters into a civil union has the same legal rights under state law as a couple who enters into a marriage. The court reasoned that the difference in labels afforded marriage and civil unions is not, in itself, sufficient to trigger an analysis of the constitutionality of that statutory scheme as applied to same sex couples.

The plaintiffs challenge the trial court’s conclusion that the distinction between marriage and civil unions is merely one of nomenclature. They contend that marriage is not simply a term denominating a bundle of legal rights. Rather, they contend that it is an institution of unique and enduring importance in our society, one that carries with it a special status. The plaintiffs therefore contend that their claim of unequal treatment cannot be dismissed solely because same sex couples who enter into a civil union enjoy the same rights under state law as married couples. The plaintiffs also claim that we must consider the legislature’s decision to create civil unions for same sex couples in the context of the historical condemnation and discrimination that gay *149persons have suffered.12 We agree with the plaintiffs that, despite the legislature’s recent establishment of civil unions, the restriction of marriage to opposite sex couples implicates the constitutional rights of gay persons who wish to marry a person of the same sex.13

A cognizable constitutional claim arises whenever the government singles out a group for differential treatment. The legislature has subjected gay persons to precisely that kind of differential treatment by creating a separate legal classification for same sex couples who, like opposite sex couples, wish to have their relationship recognized under the law. Put differently, the civil union law entitles same sex couples to all of the same rights as married couples except one, that is, the freedom to marry, a right that “has long been recognized as one of the vital personal rights essential to the orderly pursuit of happiness by free men [and women]” and “fundamental to our very existence and survival.” Loving v. Virginia, 388 U.S. 1, 12, 87 S. Ct. 1817, 18 L. Ed. 2d 1010 (1967). Indeed, marriage has been characterized as “intimate to the degree of being sacred”; Griswold v. Connecticut, 381 U.S. 479, 486, 85 S. Ct. 1678, 14 L. Ed. 2d 510 (1965); see also Turner v. Safley, 482 U.S. 78, 96, 107 S. Ct. 2254, 96 L. Ed. 2d 64 (1987) (“many religions recognize marriage as having spiritual significance”); and “an institution more basic in our civilization than any other.” Williams v. North Carolina, 317 U.S. 287, 303, 63 S. Ct. 207, 87 L. Ed. 279 (1942). Marriage, therefore, is not merely shorthand for a discrete set of legal rights and responsibilities but is “one of the most fundamental of human relationships . . . .” Davis v. *150Davis, 119 Conn. 194, 203, 175 A. 574 (1934). “Marriage . . . bestows enormous private and social advantages on those who choose to marry. Civil marriage is at once a deeply personal commitment to another human being and a highly public celebration of the ideals of mutuality, companionship, intimacy, fidelity, and family. . . . Because it fulfills yearnings for security, safe haven, and connection that express our common humanity, civil marriage is an esteemed institution . . . .” (Citation omitted; internal quotation marks omitted.) Goodridge v. Dept. of Public Health, 440 Mass. 309, 322, 798 N.E.2d 941 (2003).

Especially in light of the long and undisputed history of invidious discrimination that gay persons have suffered; see part V A of this opinion; we cannot discount the plaintiffs’ assertion that the legislature, in establishing a statutory scheme consigning same sex couples to civil unions, has relegated them to an inferior status, in essence, declaring them to be unworthy of the institution of marriage. In other words, “[b]y excluding same-sex couples from civil marriage, the [s]tate declares that it is legitimate to differentiate between their commitments and the commitments of heterosexual couples. Ultimately, the message is that what same-sex couples have is not as important or as significant as ‘real’ marriage, that such lesser relationships cannot have the name of marriage.”14 Lewis v. Harris, 188 N.J. *151415, 467, 908 A.2d 196 (2006) (Poritz, C. J., concurring and dissenting); see also In re Marriage Cases, 43 Cal. 4th 757, 830-31, 183 P.3d 384, 76 Cal. Rptr. 3d 683 (2008) (“[t]he current statutes—by drawing a distinction between the name assigned to the family relationship available to opposite-sex couples and the name assigned to the family relationship available to same-sex couples, and by reserving the historic and highly respected designation of marriage exclusively to opposite-sex couples while offering same-sex couples only the new and unfamiliar designation of domestic partnership—pose a serious risk of denying the official family relationship of same-sex couples the equal dignity and respect that is a core element of the constitutional right to marry”); Opinions of the Justices to the Senate, 440 Mass. 1201, 1207, 802 N.E.2d 565 (2004) (“[t]he dissimilitude between the terms ‘civil marriage’ and ‘civil union’ is not innocuous; it is a considered choice of language that reflects a demonstrable assigning of same-sex, largely homosexual, couples to second-class status”). Although the legislature has determined that same sex couples are entitled to “all the same benefits, protections and responsibilities . . . [that] are granted to spouses in a marriage”; General Statutes § 46b-38nn; the legislature nonetheless created an entirely separate and distinct legal entity for same sex couples even though it readily could have made those same rights available to same sex couples by permitting them to marry. In view of the exalted status of marriage in our society, it is hardly surprising that civil unions are perceived to be inferior to marriage. We therefore agree with the plaintiffs that “[maintaining a second-class citizen status for same-sex couples by excluding them from the institution of civil marriage is the constitutional infirmity at issue.”15 (Emphasis in original.) Opinions of the Justices to the Senate, supra, 1209.

*152Accordingly, we reject the trial court’s conclusion that marriage and civil unions are “separate” but “equal” legal entities; Kerrigan v. Commissioner of Public Health, supra, 49 Conn. Sup. 664; and that it therefore “would be the elevation of form over substance”; id., 667; to conclude that the constitutional rights of same sex couples are implicated by a statutory scheme that restricts them to civil unions. Although marriage and civil unions do embody the same legal rights under our law, they are by no means “equal.” As we have explained, the former is an institution of transcendent historical, cultural and social significance, whereas the latter most surely is not. Even though the classifications created under our statutory scheme result in a type of differential treatment that generally may be characterized as symbolic or intangible, this court correctly has stated that such treatment nevertheless “is every bit as restrictive as naked exclusions”; Evening Sentinel v. National Organization for Women, 168 Conn. 26, 35, 357 A.2d 498 (1975); because it is no less real than more tangible forms of discrimination, at least when, as in the present case, the statute singles out a group that *153historically has been the object of scorn, intolerance, ridicule or worse.

We do not doubt that the civil union law was designed to benefit same sex couples by providing them with legal rights that they previously did not have. If, however, the intended effect of a law is to treat politically unpopular or historically disfavored minorities differently from persons in the majority or favored class, that law cannot evade constitutional review under the separate but equal doctrine. See, e.g., Brown v. Board of Education, 347 U.S. 483, 495, 74 S. Ct. 686, 98 L. Ed. 873 (1954); cf. In re Marriage Cases, supra, 43 Cal. 4th 830-31; Opinions of the Justices to the Senate, supra, 440 Mass. 1209. In such circumstances, the very existence of the classification gives credence to the perception that separate treatment is warranted for the same illegitimate reasons that gave rise to the past discrimination in the first place. Despite the truly laudable effort of the legislature in equalizing the legal rights afforded same sex and opposite sex couples, there is no doubt that civil unions enjoy a lesser status in our society than marriage.16 We therefore conclude that the plain*154tiffs have alleged a constitutionally cognizable injury, that is, the denial of the right to marry a same sex partner. We next must determine whether the state’s differential treatment of same sex and opposite sex couples nevertheless satisfies state constitutional requirements.

*155II

GENERAL PRINCIPLES

Certain general principles govern our review of the plaintiffs’ state constitutional claim. First, “[t]he constitutionality of a statute presents a question of law over which our review is plenary. ... It [also] is well established that a validly enacted statute carries with it a strong presumption of constitutionality, [and that] those who challenge its constitutionality must sustain the heavy burden of proving its unconstitutionality beyond a reasonable doubt. . . . The court will indulge in every presumption in favor of the statute’s constitutionality .... Therefore, [w]hen a question of constitutionality is raised, courts must approach it with caution, examine it with care, and sustain the legislation unless its invalidity is clear.” (Citation omitted; internal quotation marks omitted.) State v. McKenzie-Adams, 281 Conn. 486, 500, 915 A.2d 822, cert. denied, 522 U.S. 888, 128 S. Ct. 248, 169 L. Ed. 2d 148 (2007).

Moreover, “[i]t is beyond debate that federal constitutional and statutory law establishes a minimum national standard for the exercise of individual rights and does not inhibit state governments from affording higher levels of protection for such rights.” (Emphasis in original; internal quotation marks omitted.) State v. Morales, 232 Conn. 707, 716, 657 A.2d 585 (1995), quoting State v. Barton, 219 Conn. 529, 546, 594 A.2d 917 (1991). In determining that our state constitution in some instances provides greater protection than that provided by the federal constitution, “we have recognized that [i]n the area of fundamental civil liberties— which includes all protections of the declaration of rights contained in article first of the Connecticut con*156stitution—we sit as a court of last resort, subject only to the qualification that our interpretations may not restrict the guarantees accorded the national citizenry under the federal charter.” (Internal quotation marks omitted.) State v. Morales, supra, 717; see also Ramos v. Vernon, 254 Conn. 799, 827, 761 A.2d 705 (2000) (“depending [on] the facts and-circumstances, the state constitution may afford greater protection than the federal constitution with regard to equal protection claims”). Therefore, although we may follow the analytical approach taken by courts construing the federal constitution, our use of that approach for purposes of the state constitution will not necessarily lead to the same result as that arrived at under the federal constitution. See, e.g., State v. Marsala, 216 Conn. 150, 151, 159-61, 579 A.2d 58 (1990) (rejecting “good faith” exception to search warrant requirement for purposes of state constitution despite United States Supreme Court’s adoption of that exception for purposes of federal constitution).

Furthermore, we are mindful that state “[constitutional provisions must be interpreted within the context of the times. . . . ‘We must interpret the constitution in accordance with the demands of modem society or it will be in constant danger of becoming atrophied and, in fact, may even lose its original meaning.’ ... [A] constitution is, in [former United States Supreme Court] Chief Justice John Marshall’s words, ‘intended to endure for ages to come . . . and, consequently, to be adapted to the various crises of human affairs.’ . . . [McCulloch] v. Maryland, 17 U.S. (4 Wheat.) 316, 415, 4 L. Ed. 579 (1819). . . . ‘In short, the [state] constitution was not intended to be a static document incapable of coping with changing times. It was meant to be, and is, a living document with current effectiveness.’ . . . The Connecticut constitution is an instrument of progress, it is intended to stand for a great length of time and *157should not be interpreted too narrowly or too literally so that it fails to have contemporary effectiveness for all of our citizens.” (Citations omitted; emphasis in original.) State v. Dukes, 209 Conn. 98, 114-15, 547 A.2d 10 (1988).

Finally, in State v. Geisler, 222 Conn. 672, 685, 610 A.2d 1225 (1992), we set forth six factors that, to the extent applicable, are to be considered in construing the contours of our state constitution so that we may reach reasoned and principled results as to its meaning. These factors are: (1) the text of the operative constitutional provision; (2) holdings and dicta of this court and the Appellate Court; (3) persuasive and relevant federal precedent; (4) persuasive sister state decisions; (5) the history of the operative constitutional provision, including the historical constitutional setting and the debates of the framers; and (6) contemporary economic and sociological considerations, including relevant public policies. Id. Although, in Geisler, “we compartmentalized the factors that should be considered in order to stress that a systematic analysis is required, we recognize that they may be inextricably interwoven. . . . [Moreover], not every Geisler factor is relevant in all cases.” (Citation omitted.) State v. Morales, supra, 232 Conn. 716 n. 10. Accordingly, our equal protection analysis is informed by any of those Geisler factors that may be relevant to that analysis.17

Ill

EQUAL PROTECTION ANALYSIS GENERALLY

“[T]he concept of equal protection [under both the state and federal constitutions] has been traditionally *158viewed as requiring the uniform treatment of persons standing in the same relation to the governmental action questioned or challenged.” (Internal quotation marks omitted.) State v. Matos, 240 Conn. 743, 760, 694 A.2d 775 (1997); see also Stuart v. Commissioner of Correction, 266 Conn. 596, 601, 834 A.2d 52 (2003) (constitutional right of equal protection “is essentially a direction that all persons similarly situated should be treated alike” [internal quotation marks omitted]). “Conversely, the equal protection clause places no restrictions on the state’s authority to treat dissimilar persons in a dissimilar manner. . . . Thus, [t]o implicate the equal protection [clause] ... it is necessary that the state statute ... in question, either on its face or in practice, treat persons standing in the same relation to it differently. . . . [Accordingly], the analytical predicate [of an equal protection claim] is a determination of who are the persons [purporting to be] similarly situated. . . . The similarly situated inquiry focuses on whether the [plaintiff is] similarly situated to another group for purposes of the challenged government action. . . . Thus, [t]his initial inquiry is not whether persons are similarly situated for all purposes, but whether they are similarly situated for purposes of the law challenged.” (Citations omitted; internal quotation marks omitted.) Stuart v. Commissioner of Correction, supra, 601-602; see also City Recycling, Inc. v. State, 257 Conn. 429, 448, 778 A.2d 77 (2001).

“This court has held, in accordance with the federal constitutional framework of analysis, that ‘in areas of social and economic policy that neither proceed along suspect lines nor infringe fundamental constitutional rights, the [e]qual [protection [c]lause is satisfied [as] long as there is a plausible policy reason for the classification, see United States Railroad Retirement [Board] v. Fritz, 449 U.S. 166, 174, 179 [101 S. Ct. 453, 66 L. Ed. 2d 368] (1980), the legislative facts on which the *159classification is apparently based rationally may have been considered to be true by the governmental decisionmaker, see Minnesota v. Clover Leaf Creamery Co., 449 U.S. 456, 464 [101 S. Ct. 715, 66 L. Ed. 2d 659] (1981), and the relationship of the classification to its goal is not so attenuated as to render the distinction arbitrary or irrational, see Cleburne v. Cleburne Living Center, Inc., 473 U.S. [432, 446, 105 S. Ct. 3249, 87 L. Ed. 2d 313 (1985)].’ . . . Hammond v. Commissioner of Correction, 259 Conn. 855, 885, 792 A.2d 774 (2002); accord Luce v. United Technologies Corp., 247 Conn. 126, 144, 717 A.2d 747 (1998). ‘If, however, state action invidiously discriminates against a suspect class or affects a fundamental right, the action passes constitutional muster . . . only if it survives strict scrutiny.’ Daly v. DelPonte, 225 Conn. 499, 513, 624 A.2d 876 (1993). Under that heightened standard, ‘the state must demonstrate that the challenged statute is necessary to the achievement of a compelling state interest.’ ” Rayhall v. Akim Co., 263 Conn. 328, 342-43, 819 A.2d 803 (2003).

Although the federal constitution does not expressly enumerate any suspect classes, the United States Supreme Court has identified three such classifications, namely, race, alienage and national origin. Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440. In contrast to the federal constitution, the state constitution identifies certain inherently suspect classifications. See, e.g., Daly v. DelPonte, supra, 225 Conn. 513-14. These classifications, which are set forth in article first, § 20, of the Connecticut constitution, as amended by articles five and twenty-one of the amendments, include religion, race, color, ancestry, national origin, sex, physical disability and mental disability. Because the members of those classes have been deemed to be “especially subject to discrimination”; id., 515; their “rights are protected by requiring encroachments on [those] rights to pass a strict scrutiny test.” Id., 514.

*160Additionally, for purposes of federal equal protection analysis, the United States Supreme Court also “has developed an intermediate level of scrutiny that lies [b]etween [the] extremes of rational basis review and strict scrutiny. Clark v. Jeter, 486 U.S. 456, 461, 108 S. Ct. 1910, 100 L. Ed. 2d 465 (1988). Intermediate scrutiny typically is used to review laws that employ quasi-suspect classifications . . . such as gender, Craig v. Boren, 429 U.S. 190, 197, 97 S. Ct. 451, 50 L. Ed. 2d 397 (1976), or [illegitimacy, Mills v. Habluetzel, 456 U.S. 91, 98-99, 102 S. Ct. 1549, 71 L. Ed. 2d 770 (1982). On occasion intermediate scrutiny has been applied to review of a law that affects an important, though not constitutional, right. [United States v. Coleman, 166 F.3d 428, 431 (2d Cir.), cert. denied, 526 U.S. 1138, 119 S. Ct. 1794, 143 L. Ed. 2d 1201 (1999)]; cf. Plyler [v. Doe, 457 U.S. 202, 223, 102 S. Ct. 2382, 72 L. Ed. 2d 786 (1982)] (applying, without labeling it as such, an intermediate form of scrutiny to review a law that implicated right to education). Under intermediate scrutiny, the government must show that the challenged legislative enactment is substantially related to an important governmental interest.”18 (Citation omitted; internal quotation marks omitted.) Ramos v. Vernon, 353 F.3d 171, 175 (2d Cir. 2003).

This court also has determined that, for purposes of the state constitution, “[the] two-tier analysis of the law of equal protection . . . that distinguishes only between legislation requiring strict scrutiny, which typically fails to pass constitutional muster, and legislation requiring a rational basis, which typically does pass, is not sufficiently precise to resolve all cases. Legislation that involves rights that may be significant, though not *161fundamental, or classifications that are sensitive, though not suspect, may demand some form of intermediate review.” Eielson v. Parker, 179 Conn. 552, 564, 427 A.2d 814 (1980); see also Daly v. DelPonte, supra, 225 Conn. 513 (identifying three levels of scrutiny for equal protection purposes); cf. Contractor’s Supply of Waterbury, LLC v. Commissioner of Environmental Protection, 283 Conn. 86, 103, 925 A.2d 1071 (2007) (“our own case law and precedent . . . support the conclusion that, when [legislation] does not impact a fundamental right, a suspect class or a [quasi-suspect] class, our state constitution generally mandates [a rational basis] level of scrutiny”). In Carofano v. Bridgeport, 196 Conn. 623, 495 A.2d 1011 (1985), which, like the present case, involved a claim under the equal protection provisions of the state constitution, we further explained: “Courts have tended to depart from the minimal standard [when] the interests affected by the governmental restriction are sufficiently elevated in the hierarchy of social values and to devise various formulae less rigid than the compelling state interest criterion that essentially necessitate balancing private against governmental concerns with varying degrees of deference to legislative judgment. . . .

“Situations triggering . . . intermediate review, other than sensitive classifications relating to stereotypes or disadvantaged minorities, have usually involved a significant interference with liberty or the denial of benefits considered to be vital to the individual.” (Citations omitted.) Id., 641-42. We therefore apply the same three-tiered equal protection methodology that is applied under the federal equal protection clause for purposes of our state constitution.

The defendants contend that the plaintiffs’ equal protection claim does not satisfy two threshold equal protection principles. Specifically, the defendants contend, first, that same sex couples are not similarly situated *162to opposite sex couples and, second, that the classes enumerated in article first, § 20, of the state constitution, as amended, constitute an exclusive list of protected groups. We reject each of these claims.

With respect to their first claim, the defendants assert that the plaintiffs are not similarly situated to opposite sex couples, thereby obviating the need for this court to engage in an equal protection analysis, “because the conduct that they seek to engage in—marrying someone of the same sex—is fundamentally different from the conduct in which opposite sex couples seek to engage.” We disagree. It is true, of course, that the plaintiffs differ from persons who choose to marry a person of the opposite sex insofar as each of the plaintiffs seeks to marry a person of the same sex. Otherwise, however, the plaintiffs can meet the same statutory eligibility requirements applicable to persons who seek to marry, including restrictions related to public safety, such as age; see General Statutes § 46b-30; and consanguinity. See General Statutes § 46b-21. The plaintiffs also share the same interest in a committed and loving relationship as heterosexual persons who wish to marry, and they share the same interest in having a family and raising their children in a loving and supportive environment. Indeed, the legislature itself recognized the overriding similarities between same sex and opposite sex couples when, upon passage of the civil union law, it granted same sex couples the same legal rights that married couples enjoy. We therefore agree with the California Supreme Court and conclude that the defendants’ contention that same sex and opposite sex couples are not similarly situated clearly lacks merit. “[B]oth [same sex and opposite sex couples] consist of pairs of individuals who wish to enter into a formal, legally binding and officially recognized, long-term family relationship that affords the same rights and privileges and imposes the same obligations and responsibilities. Under these cir*163cumstances, there is no question but that these two categories of individuals are sufficiently similar to bring into play equal protection principles that require a court to determine whether distinctions between the two groups justify the unequal treatment.” (Internal quotation marks omitted.) In re Marriage Cases, supra, 43 Cal. 4th 831 n.54; see also Lewis v. Harris, supra, 188 N.J. 448, 451 (same sex couples are similarly situated to their heterosexual counterparts); Baker v. State, 170 Vt. 194, 218-19, 744 A.2d 864 (1999) (statute prohibiting marriage of same sex couples treats them differently from similarly situated opposite sex couples). In light of the multitude of characteristics that same sex and opposite sex couples have in common, we conclude that the two groups are similarly situated for purposes of the plaintiffs’ equal protection challenge to the state statutory scheme governing marriage.19

*164The defendants also assert that, because article first, § 20, of the state constitution, as amended by articles five and twenty-one of the amendments, expressly prohibits discrimination against eight enumerated classes, no other group is entitled to any form of heightened protection under our state constitutional equal protection provisions. We also reject this assertion, first, because it is inconsistent with previous cases of this court in which we have expressed our approval of the three-tiered methodology for purposes of the equal protection provisions of the state constitution. See, e.g., Carofano v. Bridgeport, supra, 196 Conn. 641-42; Keogh v. Bridgeport, 187 Conn. 53, 66-67, 444 A.2d 225 (1982); Eielson v. Parker, supra, 179 Conn. 563-64. Indeed, we previously have observed that, although the framers’ failure expressly to include a particular group within the ambit of article first, § 20, as amended, is a relevant consideration in determining whether that group is entitled to special protection, it is not dispositive of the issue. See Moore v. Ganim, 233 Conn. 557, 597, 660 A. 2d 742 (1995). Furthermore, the history surrounding the adoption of article first, § 20, of the state constitution indicates that its drafters intended that provision to embody “the very strongest human rights principle that this convention can put forth to the people of Connecticut”; 2 Proceedings of the Connecticut Constitutional Convention (1965) p. 692, remarks of Representative James J. Kennelly; and, in accordance with that purpose, that the provision should be read expansively. See id., p. 691, remarks of former United States Representative Chase Going Woodhouse (“[w]e all realize that rights of individuals in this country have developed and have changed from time to time, and we certainly would not want to have in our [constitution any language that *165would in the future perhaps limit new rights”). Finally, even if we were to assume, arguendo, that the groups enumerated in article first, § 20, as amended, were intended to constitute an exhaustive list of suspect classes, the plaintiffs are not barred from recognition as a quasi-suspect class—the claim that we resolve in their favor—because the two classes are separate and distinct from one another. Indeed, under the defendants’ view, heightened protection would be available only to those classes that had marshaled the political will and popular support to secure a constitutional amendment in their favor, a result inconsistent with the rationale underlying the state constitutional equal protection provisions. We conclude, therefore, that the plaintiffs’ equal protection claim is not foreclosed merely because sexual orientation is not an enumerated classification in article first, § 20, as amended.

IV

QUASI-SUSPECT CLASSIFICATIONS UNDER THE STATE CONSTITUTION

Although this court has indicated that a group may be entitled to heightened protection under the state constitution because of its status as a quasi-suspect class, we previously have not articulated the specific criteria to be considered in determining whether recognition as a quasi-suspect class is warranted. The United States Supreme Court, however, consistently has identified two factors that must be met, for purposes of the federal constitution, if a group is to be accorded such status. These two required factors are: (1) the group has suffered a history of invidious discrimination; see United States v. Virginia, 518 U.S. 515, 531-32, 116 S. Ct. 2264, 135 L. Ed. 2d 735 (1996); Massachusetts Board of Retirement v. Murgia, 427 U.S. 307, 313, 96 S. Ct. 2562, 49 L. Ed. 2d 520 (1976); and (2) the characteristics that distinguish the group’s members bear “no relation *166to [their] ability to perform or contribute to society.” Frontiero v. Richardson, 411 U.S. 677, 686, 93 S. Ct. 1764, 36 L. Ed. 2d 583 (1973) (plurality opinion); accord Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 441; see siso Massachusetts Board of Retirements. Murgia, supra, 313 (heightened scrutiny required when group has “been subjected to unique disabilities on the basis of stereotyped characteristics not truly indicative of [the] abilities [of the group’s members]”). The United States Supreme Court also has cited two other considerations that, in a given case, may be relevant in determining whether statutory provisions pertaining to a particular group are subject to heightened scrutiny. These two additional considerations are: (1) the characteristic that defines the members of the class as a discrete group is immutable or otherwise not within their control; see, e.g., Lyng s. Castillo, 477 U.S. 635, 638, 106 S. Ct. 2727, 91 L. Ed. 2d 527 (1986) (for purposes of suspectness inquiry, relevant consideration is whether members of class “exhibit obvious, immutable, or distinguishing characteristics that define them as a discrete group”); and (2) the group is “a minority or politically powerless.” (Internal quotation marks omitted.) Bowen v. Gilliard, 483 U.S. 587, 602, 107 S. Ct. 3008, 97 L. Ed. 2d 485 (1987); accord Lyng s. Castillo, supra, 638; see also San Antonio Independent School District v. Rodriguez, 411 U.S. 1, 28, 93 S. Ct. 1278, 36 L. Ed. 2d 16 (1973) (concluding that class comprised of poor families exhibits none of “traditional indicia of suspectness” because class is “not saddled with such disabilities, or subjected to such a history of purposeful unequal treatment, or relegated to such a position of political powerlessness as to command extraordinary protection from the majoritarian political process”).

To date, the United States Supreme Court has recognized two quasi-suspect classes, namely, sex; see, e.g., Frontiero s. Richardson, supra, 411 U.S. 686 (plurality *167opinion) (what “differentiates sex from such nonsuspect statuses as intelligence or physical disability . . . is that the sex characteristic frequently bears no relation to ability to perform or contribute to society”); and illegitimacy. See, e.g., Mathews v. Lucas, 427 U.S. 495, 505-506, 96 S. Ct. 2755, 49 L. Ed. 2d 651 (1976) (applying heightened scrutiny because, inter alia, illegitimacy “bears no relation to the individual’s ability to participate in and contribute to society”). The court, however, has rejected claims that the aged and the mentally disadvantaged are quasi-suspect classes, principally because the defining characteristic of each group does in fact bear a substantial relationship to the group’s ability to participate in and contribute to society. See Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 442 (mentally disadvantaged are not suspect class because, inter alia, “those who are mentally retarded have a reduced ability to cope with and function in the everyday world”); Massachusetts Board of Retirement v. Murgia, supra, 427 U.S. 314-15 (upholding law requiring mandatory retirement of uniformed police officers at age fifty “[s]ince physical ability generally declines with age [and] mandatory retirement at [fifty] serves to remove from police service those whose fitness for uniformed work presumptively has diminished with age”).

Because of the evident correlation between the indicia of suspectness identified by the United States Supreme Court and the issue of whether a class that has been singled out by the state for unequal treatment is entitled to heightened protection under the federal constitution, we conclude that those factors also are pertinent to the determination of whether a group comprises a quasi-suspect class for purposes of the state constitution. It bears emphasis, however, that the United States Supreme Court has placed far greater weight—indeed, it invariably has placed dispositive *168weight—on the first two factors, that is, whether the group has been the subject of long-standing and invidious discrimination and whether the group’s distinguishing characteristic bears no relation to the ability of the group members to perform or function in society. In circumstances in which a group has been subject to such discrimination and its distinguishing characteristic does not bear any relation to such ability, the court inevitably has employed heightened scrutiny in reviewing statutory classifications targeting those groups. Thus, in Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440, the court explained that statutory classifications based on race, alienage and national origin are reviewed with great skepticism because such statutes are likely to be motivated by prejudice and antipathy rather than by any legitimate differences between members of those suspect groups and all other persons. The court in Cleburne expressed the same rationale in explaining why classifications based on gender are subject to a heightened standard of review: “[W]hat differentiates sex from such nonsuspect statuses as intelligence or physical disability ... is that the sex characteristic frequently bears no relation to ability to perform or contribute to society. . . . Rather than resting on meaningful considerations, statutes distributing benefits and burdens between the sexes in different ways very likely reflect outmoded notions of the relative capabilities or men and women.” (Citation omitted; internal quotation marks omitted.) Id., 440-41. In contrast, with respect to the elderly and mentally disadvantaged, the court explained that “[when] individuals in the group affected by a law have distinguishing characteristics relevant to interests the [s]tate has the authority to implement, the courts have been very reluctant, as they should be in our federal system, to closely scrutinize legislative choices as to whether, how, and to what extent those interests should be pur*169sued. In such cases, the [e]qual [protection [c]lause requires only a rational means to serve a legitimate end.” Id., 441-42.

It is evident, moreover, that immutability and minority status or political powerlessness are subsidiary to the first two primary factors because, as we explain more fully hereinafter, the United States Supreme Court has granted suspect class status to a group whose distinguishing characteristic is not immutable;20 see Nyquist *170v. Mauclet, 432 U.S. 1, 9 n.11, 97 S. Ct. 2120, 53 L. Ed. 2d 63 (1977) (rejecting immutability requirement in treating group of resident aliens as suspect class despite their ability to opt out of class voluntarily); and has accorded quasi-suspect status to a group that had not been a minority or truly politically powerless.21 See *171Frontiero v. Richardson, supra, 411 U.S. 686 n.17 (plurality opinion) (according women heightened protection despite court’s acknowledgment that women “do not constitute a small and powerless minority”). We do not doubt, moreover, that the court has accorded little weight to a group’s political power because that factor, in contrast to the other criteria, frequently is not readily discernible by reference to objective standards. Thus, an attempt to quantify a group’s political influence often will involve a myriad of complex and interrelated considerations of a kind not readily susceptible to judicial fact-finding. Nevertheless, because the court has identified the immutability of the group’s distinguishing characteristic and the group’s minority status or relative lack of political power as potentially relevant factors to the determination of whether heightened judicial protection is appropriate, we, too, shall consider those factors for purposes of our inquiry under the state constitution.22

*172Finally, we note that courts generally have applied the same criteria to determine whether a classification is suspect, quasi-suspect or neither. See, e.g., Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440-42 (applying factors in concluding that mentally disadvantaged persons do not constitute suspect or quasi-suspect class); Massachusetts Board of Retirement v. Murgia, supra, 427 U.S. 313-14 (applying factors in concluding that age is not suspect classification). Just as there is no uniformly applied formula for determining whether a group is entitled to heightened protection under the constitution, there also is no clear test for determining whether a group that deserves such protection is entitled to designation as a suspect class or as a quasi-suspect class.23 Nevertheless, we agree with the *173New Mexico Supreme Court that, although “the definition of a suspect class for the purposes of justifying strict scrutiny is instructive for a determination of whether a group of people qualifies as a [quasi-suspect] class justifying intermediate scrutiny, it is too exacting.” Breen v. Carlsbad Municipal Schools, 138 N.M. 331, 337, 120 P.3d 413 (2005) (holding that mentally disadvantaged persons constitute quasi-suspect class under equal protection clause of New Mexico constitution). Indeed, it stands to reason that “the level of protection needed from the majoritarian political process does not have to be as extraordinary as necessary for strict scrutiny because the level of scrutiny is less in intermediate scrutiny.” Id., 338. In other words, although the same factors are relevant for the purpose of identifying both suspect and quasi-suspect classes, we apply those factors less stringently with respect to groups claiming quasi-suspect class status because the intermediate scrutiny applicable to a statutory classification that discriminates on the basis of quasi-suspect status is less rigorous or demanding than the strict scrutiny to which laws burdening a suspect class are subject. With these principles in mind, we consider the plaintiffs’ contention that they are entitled to recognition as a quasi-suspect class.24

*174V

STATUS OF GAY PERSONS AS A QUASI-SUSPECT CLASS

For the reasons that follow, we agree with the plaintiffs’ claim that sexual orientation meets all of the *175requirements of a quasi-suspect classification. Gay persons have been subjected to and stigmatized by a long history of purposeful and invidious discrimination that continues to manifest itself in society. The characteristic that defines the members of this group—attraction to persons of the same sex—bears no logical relationship to their ability to perform in society, either in familial relations or otherwise as productive citizens. Because sexual orientation is such an essential component of personhood, even if there is some possibility that a person’s sexual preference can be altered, it would be wholly unacceptable for the state to require anyone to do so. Gay persons also represent a distinct minority of the population. It is true, of course, that gay persons recently have made significant advances in obtaining equal treatment under the law. Nonetheless, we conclude that, as a minority group that continues to suffer the enduring effects of centuries of legally sanctioned discrimination, laws singling them out for disparate treatment are subject to heightened judicial scrutiny to ensure that those laws are not the product of such historical prejudice and stereotyping.

A

History of Discrimination

The defendants do not dispute that gay persons historically have been, and continue to be, the target of *176purposeful and pernicious discrimination due solely to their sexual orientation. For centuries, the prevailing attitude toward gay persons has been “one of strong disapproval, frequent ostracism, social and legal discrimination, and at times ferocious punishment.” R. Posner, Sex and Reason (Harvard University Press 1992) c. 11, p. 291; see also note, “The Constitutional Status of Sexual Orientation: Homosexuality as a Suspect Classification,” 98 Harv. L. Rev. 1285, 1302 (1985) (“It is . . . uncontroversiai that gays as a group suffer from stigmatization in all spheres of life. The stigma has persisted throughout history, across cultures, and in the United States.”). “The American Psychiatric Association [has noted that] . . . when compared to other social groups, homosexuals are still among the most stigmatized groups in the nation. Hate crimes are prevalent. Gay persons are still banned from serving openly in the [United States] military service.25 . . . Gay and *177lesbian adolescents are often taunted and humiliated in their school settings. Many professional persons and employees in all occupations are still fearful of identifying as gay or lesbians in their work settings. ... In fact, gay persons share a history of persecution comparable to that of blacks and women.” (Citation omitted; internal quotation marks omitted.) Snetsinger v. Montana University System, 325 Mont. 148, 163-64, 104 P.3d 445 (2004) (Nelson, J., concurring); see also In re Marriage Cases, supra, 43 Cal. 4th 841 (“[o]utside of racial and religious minorities, we can think of no group which has suffered such pernicious and sustained hostility ... as homosexuals” [internal quotation marks omitted]); D. Satcher, Surgeon General, United States Department of Health and Human Services, “The Surgeon General’s Call to Action to Promote Sexual Health and Responsible Sexual Behavior” (July 9,2001) (“[0]ur culture often stigmatizes homosexual behavior, identity and relationships. . . . These anti-homosexual attitudes are associated with psychological distress for homosexual persons and may have a negative impact on mental health, including a greater incidence of depression and suicide, lower self-acceptance and a greater likelihood of hiding sexual orientation . . . .” [Citations omitted.]), available at http://www. surgeongeneral.gov/library/sexualhealth/call.htm.26

*178Of course, gay persons have been subjected to such severe and sustained discrimination because of our culture’s long-standing intolerance of intimate homosexual conduct. As the United States Supreme Court has recognized, “[proscriptions against [homosexual sodomy] have ancient roots.” Bowers v. Hardwick, 478 U.S. 186, 192, 106 S. Ct. 2841, 92 L. Ed. 2d 140 (1986), overruled on other grounds by Lawrence v. Texas, 539 U.S. 558, 123 S. Ct. 2472, 156 L. Ed. 2d 508 (2003); see also High Tech Gays v. Defense Industrial Security Clearance Office, 909 F.2d 375, 382 (9th Cir. 1990) (Canby, J., dissenting) (“mainstream society has mistreated [homosexuals] for centuries”); Baker v. Wade, 769 F.2d 289, 292 (5th Cir. 1985) (“the strong objection to homosexual conduct . . . has prevailed in Western culture for the past seven centuries”), cert. denied, 478 U.S. 1022, 106 S. Ct. 3337, 92 L. Ed. 2d 742 (1986). Much of the condemnation of homosexuality derives from firmly held religious beliefs and moral convictions. See, e.g., Lawrence v. Texas, supra, 571. Until not long ago, gay persons were widely regarded as deviants in need of treatment to deal with their sexual orientation.27 See, e.g., Conaway v. Deane, 401 Md. 219, 283-84, 932 A.2d 571 (2007). Moreover, until 2003, when the United States Supreme Court concluded, contrary to its earlier holding in Bowers that consensual homosexual conduct is protected under the due process clause of the fourteenth amendment; see Lawrence v. Texas, supra, 578; such conduct carried criminal penalties in over one *179quarter of the states. See id., 573; see also Bowers v. Hardwick, supra, 193 (observing that “until 1961, all [fifty] [s]tates outlawed sodomy”). Connecticut did not repeal its anti-sodomy law until 1969; Public Acts 1969, No. 828, § 214 (repealing General Statutes [Rev. to 1968] § 53-216); and, as late as 1986, the court in Bowers noted that twenty-four states and the District of Columbia “still [made] such conduct illegal and ha[d] done so for a very long time.” Bowers v. Hardwick, supra, 190. It therefore is not surprising that no court ever has refused to treat gay persons as a suspect or quasi-suspect class on the ground that they have not suffered a history of invidious discrimination. See E. Gerstmann, The Constitutional Underclass: Gays, Lesbians, and the Failure of Class-Based Equal Protection (University of Chicago Press 1999) c. 4, p. 66.

There is no question, therefore, that gay persons historically have been, and continue to be, the target of purposeful and pernicious discrimination due solely to their sexual orientation. We therefore turn to the second required factor, namely, whether the sexual orientation of gay persons has any bearing on their ability to participate in society.

B

Whether Sexual Orientation Is Related to a Person’s Ability to Participate in or Contribute to Society

The defendants also concede that sexual orientation bears no relation to a person’s ability to participate in or contribute to society, a fact that many courts have acknowledged, as well. See, e.g., Watkins v. United States Army, 875 F.2d 699, 725 (9th Cir. 1989) (Norris, J., concurring in the judgment) (“[s]exual orientation plainly has no relevance to a person’s ability to perform or contribute to society” [internal quotation marks omitted]), cert. denied, 498 U.S. 957, 111 S. Ct. 384, 112 *180L. Ed. 2d 395 (1990); Equality Foundation of Greater Cincinnati, Inc. v. Cincinnati, 860 F. Sup. 417, 437 (S.D. Ohio 1994) (“[S]exual orientation . . . bears no relation whatsoever to an individual’s ability to perform, or to participate in, or contribute to, society. ... If homosexuals were afflicted with some sort of impediment to their ability to perform and to contribute to society, the entire phenomenon of ‘staying in the [c]loset’ and of ‘coming out’ would not exist; their impediment would betray their status.”), rev’d on other grounds, 54 F.3d 261 (6th Cir. 1995), vacated and remanded, 518 U.S. 1001, 116 S. Ct. 2519, 135 L. Ed. 2d 1044 (1996); Conaway v. Deane, supra, 401 Md. 282 (gay persons have been subject to unique disabilities unrelated to their ability to contribute to society); Hernandez v. Robles, 7 N.Y.3d 338, 388, 855 N.E.2d 1, 821 N.Y.S.2d 770 (2006) (Kaye, C. J., dissenting) (“[o]bviously, sexual orientation is irrelevant to one’s ability to perform or contribute”). In this critical respect, gay persons stand in stark contrast to other groups that have been denied suspect or quasi-suspect class recognition, despite a history of discrimination, because the distinguishing characteristics of those groups adversely affect their ability or capacity to perform certain functions or to discharge certain responsibilities in society. See, e.g., Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 442 (for purposes of federal constitution, mental retardation is not quasi-suspect classification because, inter alia, “it is undeniable . . . that those who are mentally retarded have a reduced ability to cope with and function in the everyday world”); Massachusetts Board of Retirement v. Murgia, supra, 427 U.S. 315 (age is not suspect classification because, inter alia, “physical ability generally declines with age”); see also Gregory v. Ashcroft, 501 U.S. 452, 472, 111 S. Ct. 2395, 115 L. Ed. 2d 410 (1991) (“[i]t is an unfortunate fact of life that physical [capacity] and mental capacity sometimes diminish with age”).

*181Unlike the characteristics unique to those groups, however, “homosexuality bears no relation at all to [an] individual’s ability to contribute fully to society.” L. Tribe, American Constitutional Law (2d Ed. 1988) § 16-33, p. 1616. Indeed, because an individual’s homosexual orientation “implies no impairment in judgment, stability, reliability or general social or vocational capabilities”; (internal quotation marks omitted) Jantz v. Muci, 759 F. Sup. 1543, 1548 (D. Kan. 1991) (quoting 1985 Resolution of the American Psychological Association), rev’d on other grounds, 976 F.2d 623 (10th Cir. 1992), cert. denied, 508 U.S. 952, 113 S. Ct. 2445, 124 L. Ed. 2d 662 (1993); the observation of the United States Supreme Court that race, alienage and national origin— all suspect classes entitled to the highest level of constitutional protection—“are so seldom relevant to the achievement of any legitimate state interest that laws grounded in such considerations are deemed to reflect prejudice and antipathy”; Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440; is no less applicable to gay persons.

It is highly significant, moreover, that it is the public policy of this state that sexual orientation bears no relation to an individual’s ability to raise children; see, e.g., General Statutes § 45a-727 (permitting same sex couples to adopt children); see also General Statutes § 45a-727a (3) (finding of General Assembly that best interests of child are promoted whenever child is pait of “loving, supportive and stable family” without reference to sexual preference of parents); to an individual’s capacity to enter into relationships analogous to marriage; see General Statutes §§ 46b-38aa through 46b-38pp (granting same sex couples all rights and privileges afforded to opposite sex couples who enter into marriage); and to an individual’s ability otherwise to participate fully in every important economic and social institution and activity that the government regulates. *182See General Statutes § § 46a-8 la through 46a-8 In (generally banning sexual orientation discrimination in employment, trade and professional association membership, public accommodations, housing, credit practices, state hiring practices, state licensing practices and in administration of state educational and vocational programs as well as state administered benefits programs). These statutory provisions constitute an acknowledgment by the state that homosexual orientation is no more relevant to a person’s ability to perform and contribute to society than is heterosexual orientation. It therefore is clear that the plaintiffs have satisfied this second and final required prong for determining whether a group is entitled to recognition as a quasi-suspect or suspect class.

C

Immutability of the Group’s Distinguishing Characteristic

A third factor that courts have considered in determining whether the members of a class are entitled to heightened protection for equal protection purposes is whether the attribute or characteristic that distinguishes them is immutable or otherwise beyond their control. See, e.g., Bowen v. Gilliard, supra, 483 U.S. 602. Of course, the characteristic that distinguishes gay persons from others and qualifies them for recognition as a distinct and discrete group is the characteristic that historically has resulted in their social and legal ostracism, namely, their attraction to persons of the same sex.

On a number of occasions, in connection with its consideration of a claim that a particular group is entitled to suspect or quasi-suspect class status, the United States Supreme Court has considered whether the group’s distinguishing characteristic is immutable. See, e.g., Mathews v. Lucas, supra, 427 U.S. 505 (illegitimacy *183is “a characteristic determined by causes not within the control of the illegitimate individual”); Frontiero v. Richardson, supra, 411 U.S. 686 (plurality opinion) (“since sex, like race and national origin, is an immutable characteristic determined solely by the accident of birth, the imposition of special disabilities [on] the members of a particular sex because of their sex would seem to violate the basic concept of our system that legal burdens should bear some relationship to individual responsibility” [internal quotation marks omitted]); cf. Parham v. Hughes, 441 U.S. 347, 351, 99 S. Ct. 1742, 60 L. Ed. 2d 269 (1979) (statute prohibiting father, who has failed to legitimate his illegitimate child, from suing for child’s wrongful death does not create inherently suspect class “based [on] certain . . . immutable human attributes”); Johnson v. Robison, 415 U.S. 361, 375 n. 14, 94 S. Ct. 1160, 39 L. Ed. 2d 389 (1974) (conscientious objectors do not constitute suspect class because, inter alia, they lack traditional indicia of suspect class, including “immutable characteristic”). Immutability has been deemed to be a relevant consideration because it “make[s] discrimination more clearly unfair.” High Tech Gays v. Defense Industrial Security Clearance Office, supra, 909 F.2d 377 (Canby, J., dissenting). “Immutability may be considered important because it would be pointless to try to deter membership in the immutable group, or because individual group members cannot be blamed for their status, or because immutability heightens the sense of stigma associated with membership . . . .” Note, supra, 98 Harv. L. Rev. 1302-1303. Put differently, “[t]he degree to which an individual controls, or cannot avoid, the acquisition of a defining trait, and the relative ease or difficulty with which a trait can be changed, are relevant to whether a classification is ‘suspect’ or ‘quasi-suspect’ because this inquiry is one way of asking whether someone, rather than being victimized, has voluntarily joined a *184persecuted group and thereby invited the discrimination.” Dean v. District of Columbia, 653 A.2d 307, 346 (D.C. 1995) (Ferren, J., concurring in part and dissenting in part).

A number of courts that have considered this factor have rejected the claim that sexual orientation is an immutable characteristic.28 Other courts, however, as well as many, if not most, scholarly commentators, have reached a contrary conclusion.29 Although we do not *185doubt that sexual orientation—heterosexual or homosexual—is highly resistant to change, it is not necessary for us to decide whether sexual orientation is immutable in the same way and to the same extent that race, national origin and gender are immutable, because, even if it is not, the plaintiffs nonetheless have established that they fully satisfy this consideration.

Sexual intimacy is “a sensitive, key relationship of human existence, central to . . . the development of human personality . . . .” Paris Adull Theatre I v. Slaton, 413 U.S. 49, 63, 93 S. Ct. 2628, 37 L. Ed. 2d 446 (1973). Thus, the United States Supreme Court has recognized that, because “the protected right of homosexual adults to engage in intimate, consensual conduct . . . [represents] an integral part of human freedom”; Lawrence v. Texas, supra, 539 U.S. 576-77; individual decisions by consenting adults concerning the intimacies of their physical relationships are entitled to constitutional protection. See id., 578. Indeed, it is indisputable that sexual orientation “forms a significant part of a person’s iden*186tity.” Able v. United States, 968 F. Sup. 850, 863 (E.D.N.Y. 1997), rev’d on other grounds, 155 F.3d 628 (2d Cir. 1998); see also L. Tribe, supra, § 16-33, p. 1616 (sexual orientation, whether homosexual or heterosexual, is central to personality of individual). It is equally apparent that, “[b]ecause a person’s sexual orientation is so integral an aspect of one’s identity, it is not appropriate to require a person to repudiate or change his or her sexual orientation in order to avoid discriminatory treatment.” In re Marriage Cases, supra, 43 Cal. 4th 842; see also Hernandez-Montiel v. Immigration & Naturalization Service, 225 F.3d 1084, 1093 (9th Cir. 2000) (“[s]exual orientation and sexual identity . . . are so fundamental to one’s identity that a person should not be required to abandon them”); Watkins v. United States Army, supra, 875 F.2d 726 (Norris, J., concurring in the judgment) (“Scientific proof aside, it [also] seems appropriate to ask whether heterosexuals feel capable of changing their sexual orientation. Would heterosexuals living in a city that passed an ordinance burdening those who engaged in or desired to engage in sex with persons of the opposite sex find it easy not only to abstain from heterosexual activity but also to shift the object of their sexual desires to persons of the same sex? . . . [T]he possibility of such a difficult and traumatic change does not make sexual orientation ‘mutable’ for equal protection purposes.” [Citations omitted; emphasis in original.]); Jantz v. Muci, supra, 759 F. Sup. 1548 (“to discriminate against individuals who accept their given sexual orientation and refuse to alter that orientation to conform to societal norms does significant violence to a central and defining character of those individuals”).

In view of the central role that sexual orientation plays in a person’s fundamental right to self-determination, we fully agree with the plaintiffs that their sexual orientation represents the kind of distinguishing charac*187teristic that defines them as a discrete group for purposes of determining whether that group should be afforded heightened protection under the equal protection provisions of the state constitution. This prong of the suspectness inquiry surely is satisfied when, as in the present case, the identifying trait is “so central to a person’s identity that it would be abhorrent for government to penalize a person for refusing to change [it] . . . .” Watkins v. United States Army, supra, 875 F.2d 726 (Norris, J., concurring in the judgment); see also Andersen v. King County, 158 Wash. 2d 1, 105 n.78, 138 P.3d 963 (2006) (Bridge, J., concurring in the dissent) (“Courts . . . should not conclude that homosexuality is mutable [for purposes of determining whether gay persons are entitled to suspect or quasi-suspect class status] because reasonable minds disagree about the causes of homosexuality or because some religious tenets forbid gay persons from ‘acting on’ homosexual behavior. Instead, courts should ask whether the characteristic at issue is one governments have any business requiring a person to change.” [Emphasis in original.]). In other words, gay persons, because they are characterized by a “central, defining [trait] of personhood, which may be altered [if at all] only at the expense of significant damage to the individual’s sense of self’; Jantz v. Muci, supra, 759 F. Sup. 1548; are no less entitled to consideration as a suspect or quasi-suspect class than any other group that has been deemed to exhibit an immutable characteristic. See id.; see also note, supra, 98 Harv. L. Rev. 1303 (sexual orientation, like race and sex, is “one of only a handful of characteristics that ha[s] such a pervasive and profound impact on the [relevant] aspects of personhood”). To decide otherwise would be to penalize someone for being unable or unwilling to “change ... a central aspect of individual and group identity”; Watkins v. United States Army, supra, 726 (Norris, J., concurring in the judgment); a *188result repugnant “to the values animating the constitutional ideal of equal protection of the laws.” Id.

D

Whether the Group Is a Minority or Lacking in Political Power

The final factor that bears consideration is whether the group is “a minority or politically powerless.” (Internal quotation marks omitted.) Bowen v. Gilliard, supra, 483 U.S. 602. We therefore turn to that prong of the test.

1

We commence our analysis by noting that, in previous cases involving groups seeking heightened protection under the federal equal protection clause, the United States Supreme Court described this factor without reference to the minority status of the subject group, focusing instead on the group’s lack of political power. See, e.g., Massachusetts Board of Retirement v. Murgia, supra, 427 U.S. 313 (explaining that “a suspect class is one saddled with such disabilities, or subjected to such a history of purposeful unequal treatment, or relegated to such a position of political powerlessness as to command extraordinary protection from the majoritarian political process” [internal quotation marks omitted]); San Antonio Independent School District v. Rodriguez, supra, 411 U.S. 28 (same). In its most recent formulation of the test for determining whether a group is entitled to suspect or quasi-suspect classification, however, the court has indicated that this factor is satisfied upon a showing either that the group is a minority or that it lacks political power. Bowen v. Gilliard, supra, 483 U.S. 602; Lyng v. Castillo, supra, 477 U.S. 638. Indeed, in characterizing this factor in disjunctive terms, the court cited to Murgia; Bowen v. Gilliard, supra, 602-603; Lyng v. Castillo, supra, 638; thereby also indicating that, for purposes of this aspect of the inquiry, the test always has involved a determination of whether the *189group is a “discrete and insular” minority; United States v. Carolene Products Co., 304 U.S. 144, 152-53 n.4, 58 S. Ct. 778, 82 L. Ed. 1234 (1938); or, if not a true minority; see, e.g., Frontiero v. Richardson, supra, 411 U.S. 686 n.17, 688 (plurality opinion) (women accorded protected status although not minority); the group nonetheless is lacking in political power. This disjunctive test properly recognizes that a group may warrant heightened protection even though it does not fit the archetype of a discrete and insular minority. The test also properly recognizes that legislation singling out a true minority that meets the first three prongs of the suspectness inquiry must be viewed with skepticism because, under such circumstances, there exists an undue risk that legislation involving the historically disfavored group has been motivated by improper considerations borne of prejudice or animosity.

When this approach is applied to the present case, there is no doubt that gay persons clearly comprise a distinct minority of the population.30 Consequently, they *190clearly satisfy the first part of the disjunctive test and, thus, may be deemed to satisfy this prong of the suspectness inquiry on that basis alone.

2

The defendants nevertheless maintain that gay persons should not receive recognition as a quasi-suspect group because they are not politically powerless. In light of this claim, which represents the defendants’ primary challenge to the plaintiffs’ contention that they are entitled to quasi-suspect class status, and because some courts have applied that component of the suspectness inquiry to deny gay persons protected status even though they represent a minority of the population, we consider the defendants’ contention.

In support of their claim, the defendants rely primarily on this state’s enactment of the gay rights and civil union laws, which, of course, were designed to provide equal rights for gay persons, and which undoubtedly reflect a measure of political power. The defendants also rely on the fact that several state legislators in Connecticut are openly gay. From the defendants’ standpoint, these significant advances undermine the plaintiffs’ claim that gay persons are so lacking in political power that they are entitled to heightened judicial protection.

The plaintiffs contend that this test does not require proof that gay persons are wholly lacking in political influence but, rather, that the discrimination to which they have been subjected has been so severe and so persistent that, as with race and sex discrimination, it is not likely to be remedied soon enough merely by resort to the majoritarian political process. In support of their assertion that they do not wield sufficient political power to obviate the need for heightened judicial protection, the plaintiffs note that gay persons are demonstrably less powerful than African-Americans and *191women, two groups that have been accorded protected status under the federal constitution. As the plaintiffs also emphasize, courts continue to apply heightened scrutiny to statutes that discriminate against women and racial minorities notwithstanding the great strides that both groups have made and continue to make in recent years in terms of their political strength. Indeed, heightened scrutiny is applied to statutes that discriminate against men; see Craig v. Boren, supra, 429 U.S. 197, 204; and against Caucasians. See, e.g., Richmond v. J.A. Croson Co., 488 U.S. 469, 493-96, 109 S. Ct. 706, 102 L. Ed. 2d 854 (1989). Finally, the plaintiffs contend that when African-Americans and women first were recognized as suspect and quasi-suspect classes, respectively, comprehensive legislation barring discrimination against those groups had been in effect for years, and yet the existence of that legislation did not deter the United States Supreme Court from according them protected status. The plaintiffs argue, therefore, that similar legislation protecting gay persons cannot disqualify that group from recognition as a quasi-suspect class. We agree.

We commence our analysis by considering what the term “political powerlessness” actually means for purposes of the suspectness inquiry. Unfortunately, “in most cases the [United States] Supreme Court has no more than made passing reference to the ‘political power’ factor without actually analyzing it. See., e.g., Bowen v. Gilliard, [supra, 483 U.S. 602]; Massachusetts Board of Retirement v. Murgia, [supra, 427 U.S. 313]; San Antonio Independent School District v. Rodriguez, [supra, 411 U.S. 28].” Equality Foundation of Greater Cincinnati, Inc. v. Cincinnati, supra, 860 F. Sup. 437-38 n.17. In view of this fact, and because the extent to which a group possesses or lacks political power is neither readily discernible nor easily measurable, this facet of the suspectness inquiry aptly has been charac*192terized as “ill-defined . . . .” Id., 437 n.17. Our task is further complicated by the fact that, to our knowledge, no other court has undertaken a thorough analysis of this factor. The defendants are correct, of course, that gay persons are not entirely without political power, both because the legislature has been persuaded of the need for laws prohibiting sexual orientation discrimination and because some gay persons serve openly in public office. We agree with the plaintiffs, however, that they need not demonstrate that gay persons are politically powerless in any literal sense of that term in order to satisfy this component of the suspectness inquiry.

This conclusion is compelled by United States Supreme Court jurisprudence. We commence our review of that jurisprudence with Frontiero v. Richardson, supra, 411 U.S. 677 (plurality opinion), in which the court considered an equal protection challenge to a statutory scheme that treated female spouses of servicemen differently from the male spouses of servicewomen. See id., 678. After acknowledging this nation’s “long and unfortunate history of sex discrimination”; id., 684; the court underscored the “gross, stereotyped distinctions between the sexes” that had been statutorily sanctioned for many years. Id., 685. The court further observed that “sex, like race and national origin, is an immutable characteristic” that “frequently bears no relation to ability to perform or contribute to society.” Id., 686. In reliance on these considerations, the court concluded that classifications based on sex, like classifications based on race, alienage or national origin, are inherently suspect, and therefore must be subject to heightened judicial review.31 Id., 688.

*193In reaching its conclusion, the court observed, first, that “the position of women in America has improved markedly in recent decades.” Id., 685. Despite this improvement, however, the court also explained that “women still face[d] pervasive, although at times more subtle, discrimination in our educational institutions, in the job market and, perhaps most conspicuously, in the political arena.” Id., 686.

The court nevertheless recognized the significant political advances that had been made toward gender equality, observing that “Congress ha[d] . . . manifested an increasing sensitivity to sex-based classifications. In [Title] VII of the Civil Rights Act of 1964, for example, Congress expressly declared that no employer, labor union, or other organization subject to the provisions of the [a]ct shall discriminate against any individual on the basis of race, color, religion, sex, or national origin. Similarly, the Equal Pay Act of 1963 provides that no employer covered by the [a]ct shall discriminate . . . between employees on the basis of sex. And § 1 of the [e]qual [r]ights [a]mendment, passed by Congress on March 22, 1972, and submitted to the legislatures of the [s]tates for ratification, declares that [e] quality of rights under the law shall not be denied or abridged by the United States or by any [s]tate on account of sex.” (Internal quotation marks omitted.) Id., 687.

In light of these significant protections, the court also acknowledged that, “when viewed in the abstract, women do not constitute a small and powerless minority.” (Emphasis added.) Id., 686 n.17. The court further observed, however, that, in large part because of past *194discrimination, women were “vastly under-represented in this [n]ation’s decisionmaking councils.”32 Id. Thus, after explaining that women reasonably could not be characterized as politically powerless in the literal sense of that term, the court nevertheless concluded that women are entitled to enhanced judicial protection because the discrimination to which they had been subj ected was irrational and unlikely to be eliminated solely by the enactment of remedial legislation. In other words, as the court since has explained, heightened scrutiny of certain classifications, including gender, is warranted because those classifications “are so seldom relevant to the achievement of any legitimate state interest that laws grounded in such considerations are deemed to reflect prejudice and antipathy . . . and because such discrimination is unlikely to be soon rectified by legislative means . . . .” (Emphasis added.) Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440.

Women have continued to make significant political progress in the years following the court’s decision in Frontiero.33 Indeed, because females outnumber males *195in this country,34 they do not constitute a minority, let alone a relatively powerless one. Nevertheless, the United States Supreme Court repeatedly has applied heightened scrutiny to statutory classifications based on sex and continues to do so. See, e.g., Nevada Dept. of Human Resources v. Hibbs, 538 U.S. 721, 728, 123 S. Ct. 1972, 155 L. Ed. 2d 953 (2003); Nguyen v. Immigration & Naturalization Service, 533 U.S. 53, 60, 121 S. Ct. 2053, 150 L. Ed. 2d 115 (2001); United States v. Virginia, supra, 518 U.S. 533; Heckler v. Mathews, 465 U.S. 728, 744, 104 S. Ct. 1387, 79 L. Ed. 2d 646 (1984); Caban v. Mohammed, 441 U.S. 380, 388, 99 S. Ct. 1760, 60 L. Ed. 2d 297 (1979); Califano v. Goldfarb, 430 U.S. 199, 210-11, 97 S. Ct. 1021, 51 L. Ed. 2d 270 (1977). Moreover, despite significant political gains by racial and ethnic minorities since they first were accorded treatment as a suspect class, both in terms of the enactment of antidiscrimination laws and electoral success,35 courts also continue to apply strict scrutiny to statutes that draw distinctions on the basis of such classifications. See, e.g., Parents Involved in Community Schools v. Seattle School District No. 1, 551 U.S. 701, *196720, 127 S. Ct. 2738, 168 L. Ed. 2d 508 (2007); see also Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 467 (Marshall, J., concurring in the judgment in part and dissenting in part) (“[t]he [United States Supreme] Court . . . has never suggested that race-based classifications became any less suspect once extensive legislation had been enacted on the subject”); D. Richards, Women, Gays and the Constitution: The Grounds for Feminism and Gay Rights in Culture and Law (University of Chicago Press 1998) c. 5, p. 268 n.248 (“[r]acial classifications . . . remain as suspect as they have ever been irrespective of the political advances of African Americans”); D. Richards, supra, p. 268 (no sound reason exists to suggest “that the gains in political solidarity of groups subjected to deep racial or sexist or religious prejudice . . . disentitle them to constitutional protection”).

It is apparent, then, that the political powerlessness aspect of the suspectness inquiry does not require a showing that the group seeking recognition as a protected class is, in fact, without political power. As we have explained, women were not politically powerless in an absolute sense when they first were accorded heightened constitutional protection in the early 1970s; indeed, prior to the recognition of women as a quasi-suspect class, gender discrimination had been prohibited statutorily—much like discrimination on the basis of sexual orientation has been barred by statute in this state—and Congress had adopted a joint resolution that caused the proposed equal rights amendment to the United States constitution to be presented to the states for ratification. Today, women, like African-Americans, continue to receive heightened protection under the equal protection clause even though they are a potent and growing political force. The term “political powerlessness,” therefore, is clearly a misnomer. We apply this facet of the suspectness inquiry not to ascertain *197whether a group that has suffered invidious discrimination borne of prejudice or bigotry is devoid of political power but, rather, for the purpose of determining whether the group lacks sufficient political strength to bring a prompt end to the prejudice and discrimination through traditional political means. Consequently, a group satisfies the political powerlessness factor if it demonstrates that, because of the pervasive and sustained nature of the discrimination that its members have suffered, there is a risk that that discrimination will not be rectified, sooner rather than later, merely by resort to the democratic process. See Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440. Applying this standard, we have little difficulty in concluding that gay persons are entitled to heightened constitutional protection despite some recent political progress.

First, the discrimination that gay persons have suffered has been so pervasive and severe—even though their sexual orientation has no bearing at all on their ability to contribute to or perform in society—that it is highly unlikely that legislative enactments alone will suffice to eliminate that discrimination. As we previously have noted; see part V A of this opinion; prejudice against gay persons is long-standing and deeply rooted, in this state and throughout the nation. In fact, until recently, gay persons were widely deemed to be mentally ill; see footnote 27 of this opinion and accompanying text; and their intimate conduct was subject to criminal sanctions. See, e.g., Bowers v. Hardwick, supra, 478 U.S. 193-94. It is impossible to overestimate the stigma that attaches in such circumstances. “After all, there can hardly be more palpable discrimination against a class than making the conduct that defines the class criminal.” (Internal quotation marks omitted.) Lawrence v. Texas, supra, 539 U.S. 583 (O’Connor, J., concurring in the judgment); accord Padula v. Webster, *198822 F.2d 97, 103 (D.C. Cir. 1987); see also Lawrence v. Texas, supra, 575 (“[w]hen homosexual conduct is made criminal by the law of the [s]tate, that declaration in and of itself is an invitation to subject homosexual persons to discrimination both in the public and in the private spheres”).

That prejudice against gay persons is so widespread and so deep-seated is due, in large measure, to the fact that many people in our state and nation sincerely believe that homosexuality is morally reprehensible. Indeed, homosexuality is contrary to the teachings of more than a few religions.36 In its amicus brief submitted to this court, the Becket Fund for Religious Liberty, which represents “the interests ... of religious persons and institutions that conscientiously object to treating [same] sex and [opposite] sex unions as moral equivalents,” notes that “many religious groups do not accept [a sexual relationship] among same sex couples as a matter of conscience” and that “probably [the] majority . . . [of] religious groups . . . oppose same sex marriage.” As the United States Supreme Court has recognized, “for centuries there have been powerful voices to condemn homosexual conduct as immoral. The condemnation [of homosexuality] has been shaped by religious beliefs, conceptions of right and acceptable behavior, and respect for the traditional family. For many persons these are not trivial concerns but profound and deep convictions accepted as ethical and moral principles to which they aspire and which thus determine the course of their lives.” Lawrence v. Texas, supra, 539 U.S. 571. Former United States Supreme Court Chief Justice Warren Burger made this same point *199not long ago: “Decisions of individuals relating to homosexual conduct have been subject to state intervention throughout the history of Western civilization. Condemnation of those practices is firmly rooted in Judeao-Christian moral and ethical standards”; Bowers v. Hardwick, supra, 478 U.S. 196 (Burger, C. J., concurring); and represents a “millennia of moral teaching.” Id., 197. Feelings and beliefs predicated on such profound religious and moral principles are likely to be enduring, and persons and groups adhering to those views undoubtedly will continue to exert influence over public policy makers.37

Beyond moral disapprobation, gay persons also face virulent homophobia that rests on nothing more than feelings of revulsion toward gay persons and the intimate sexual conduct with which they are associated. Unfortunately, “[h]omosexuals are hated, quite irrationally, for what they are . . . .” High Tech Gays v. Defense Industrial Security Clearance Office, supra, 909 F.2d 382 (Canby, J., dissenting). Such visceral prejudice is reflected in the large number of hate crimes that are perpetrated against gay persons.38 The prevalence *200of such crimes has prompted the legislature to pass hate crime legislation that includes sexual orientation, along with race, religion, ethnicity, disability and gender, as a protected class. See General Statutes §§ 53a-181j, 53a-181k and 53a-181Z. The irrational nature of the prejudice directed at gay persons, who “are ridiculed, ostracized, despised, demonized and condemned” merely for being who they are; Snetsinger v. Montana University System, supra, 325 Mont. 160 (Nelson, J., concurring); is entirely different in kind than the prejudice suffered by other groups that previously have been denied suspect or quasi-suspect class status, such as the poor, the mentally disadvantaged and the aged. In fact, the bigotry and hatred that gay persons have faced are akin to, and, in certain respects, perhaps even more severe than, those confronted by some groups that have been accorded heightened judicial protection.39 See, e.g., People v. Garcia, 77 Cal. App. 4th 1269, 1279, 92 Cal. Rptr. 2d 339 (2000) (only racial and religious minorities have suffered more intense and deep-seated hostility *201than homosexuals). This fact provides further reason to doubt that such prejudice soon can be eliminated and underscores the reality that gay persons face unique challenges to their political and social integration.40

Insofar as gay persons play a role in the political process, it is apparent that their numbers reflect their status as a small and insular minority. It recently has been noted that, of the more than one-half million people who hold a political office at the local, state and national level, only about 300 are openly gay persons. Andersen v. King County, supra, 158 Wash. 2d 105 (Bridge, J., concurring in dissent); see also R. La Corte, “State Legislature Has Second-Largest Gay Caucus in U.S.” (January 24, 2008) (putting figure at about 400 openly gay persons), available at http://seattletimes. nwsource.com/html/nationworld/2004140976_webgay caucus23.html?syn. No openly gay person ever has been appointed to a United States Cabinet position or to any federal appeals court.41 In addition, no openly gay person has served in the United States Senate, and only two currently serve in the United States House of Representatives. See “Majority of Voters Open To Electing Gay President” (August 21, 2008), available at http://www.vict01yfund.0rg/news/view/url:maj0rity_ of_voters_open_to_electing_gay_president. Gay per*202sons also lack representation in the highest levels of business, industry and academia. For example, no openly gay person heads a Fortune 500 company; G. Shister, “Gay Chief Executives Come Out Winners” (January 28, 2008), available at http://web.archive.org/ web/20080129030005/http:/www.phiUy.com/inquirer/ local/20080128_Gay_chief_executives_come_out_winners.html; and it has been estimated that there are only fourteen openly gay college and university presidents or chancellors; see “An Openly Gay Chancellor Heads to Madison, Wis.,” Chronicle of Higher Education News Blog (May 29, 2008), available at http://chronicle.com/ news/article/?id=4574; a number that represents only one half of 1 percent of such positions nationwide.

In this state, no openly gay person ever has been elected to statewide office, and only five of the 187 members of the state legislature are openly gay or lesbian.42 No openly gay man or lesbian ever has been appointed to the state Supreme Court or Appellate Court, and we are aware of only one openly gay or lesbian judge of the Superior Court. By contrast, this state’s current governor, comptroller and secretary of the state are women, as are the current chief justice and two associate justices of the state Supreme Court, and other women now hold and previously have held statewide office and positions in the United States House of Representatives. By any standard, therefore, *203gay persons “remain a political underclass in our [state and] nation.” Andersen v. King County, supra, 158 Wash. 2d 105 (Bridge, J., concurring in dissent).

In recent years, our legislature has taken substantial steps to address discrimination against gay persons. These efforts are most notably reflected in this state’s gay rights law; see General Statutes §§ 46a-81a through 46a-81r; which broadly prohibits discrimination against a person because of his or her “preference for heterosexuality, homosexuality or bisexuality, having a history of such preference or being identified with such preference . . . .”43 General Statutes § 46a-81a. This public policy extends to a wide range of activities, including membership in licensed professional associations; see General Statutes § 46a-81b; employment; see General Statutes § 46a-81c; public accommodations; see General Statutes § 46a-81d; housing; see General Statutes § 46a-81e; credit practices; see General Statutes § 46a-81f; employment in state agencies; see General Statutes §§ 46a-81h and 46a-81j; the granting of *204state licenses; see General Statutes § 46a-81k; educational and vocational programs of state agencies; see General Statutes § 46a-81m; and the allocation of state benefits. See General Statutes § 46a-81n. Other statutes also seek to prohibit discrimination against same sex couples and gay persons. See General Statutes § 45a-724 et seq. (permitting same sex couples to adopt children); General Statutes §§ 53a-181j, 53a-181k and 53a-181i (recognizing crimes of intimidation based on bigotry or bias for conduct directed at another on account of that person’s actual or perceived sexual orientation). These antidiscrimination provisions, along with the civil union law, reflect the fact that gay persons are able to exert some degree of political influence in the state.

Notwithstanding these provisions, however, the legislature expressly has stated that the gay rights law shall not be “deemed or construed (1) to mean the state of Connecticut condones homosexuality or bisexuality or any equivalent lifestyle, (2) to authorize the promotion of homosexuality or bisexuality in educational institutions or require the teaching in educational institutions of homosexuality or bisexuality as an acceptable lifestyle, (3) to authorize or permit the use of numerical goals or quotas, or other types of affirmative action programs, with respect to homosexuality or bisexuality in the administration or enforcement of the [state’s antidiscrimination laws], (4) to authorize the recognition of or the right of marriage between persons of the same sex, or (5) to establish sexual orientation as a specific and separate cultural classification in society.”44 General Statutes § 46a-81r. By singling out same *205sex relationships in this manner—there is, of course, no such statutory disclaimer for opposite sex relationships—the legislature effectively has proclaimed, as a matter of state policy, that same sex relationships are disfavored.45 That policy, which is unprecedented among the various antidiscrimination measures enacted in this state, represents a kind of state-sponsored disapproval of same sex relationships and, consequently, serves to undermine the legitimacy of homosexual relationships, to perpetuate feelings of personal inferiority and inadequacy among gay persons, and to diminish the effect of the laws barring discrimination against gay persons.46 Indeed, the purposeful description of homo*206sexuality as a “lifestyle” not condoned by the state stigmatizes gay persons and equates their identity with conduct that is disfavored by the state. Furthermore, although the legislature eventually enacted the gay rights law, its enactment was preceded by nearly a decade of numerous, failed attempts at passage.47 In addition, the bill that did become law provides more limited protection than the proposals that had preceded it, all of which would have added sexual orientation to the existing nondiscrimination laws and would have treated the classification in the same manner as other protected classes.48 Finally, as we have explained, the legislation that ultimately emerged from this process *207passed only after a compromise was reached that resulted in, inter alia, an unprecedented proviso expressing the position of the legislature that it does not condone homosexuality. Thus, to the extent that those civil rights laws, as well as the civil union law, reflect the fact that gay persons wield a measure of political power, the public policy articulated in § 46a-81r is clear evidence of the limits of that political influence.

Finally, although state law provides certain protections to gay persons, the United States Supreme Court has explained that such protective legislation, while indicative that the subject group possesses at least some political power; see, e.g., Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 445 (observing that unique legislative response to special needs of mentally disadvantaged persons belies claim that such persons are so lacking in political power that they cannot attract attention of lawmakers to those special needs); also is a factor supporting the conclusion that the subject group is in need of heightened constitutional protection. In particular, in Frontiero v. Richardson, supra, 411 U.S. 687 (plurality opinion), the court observed that Congress had taken significant steps, both statutory and otherwise, to eliminate gender discrimination. The court further explained that, in undertaking those efforts, Congress had manifested its determination that gender classifications are “inherently invidious”; id.; and that that “conclusion of a coequal branch of [g]ovemment” was significant for the purpose of deciding whether gender constituted a suspect class for equal protection purposes. Id., 687-88. Thus, the court viewed the enactment of remedial legislation aimed at protecting women from discrimination not as reason to deny them protected class status but, rather, as a justification for granting them such treatment, because it reflected the determination of Congress that gender based classifications are likely to be founded on preju*208dice and stereotype. See id. We therefore agree with Chief Judge Judith S. Kaye of the New York Court of Appeals that “[s]uch measures acknowledge—rather than mark the end of—a history of purposeful discrimination . . . .”49 Hernandez v. Robles, supra, 7 N.Y.3d 388-89 (Kaye, C. J., dissenting); see also Watkins v. United States Army, supra, 875 F.2d 727 (Norris, J., concurring in the judgment) (“[t]he very fact that homosexuals have historically been underrepresented in and victimized by political bodies is itself strong evidence that they lack the political power necessary to ensure fair treatment at the hands of government”).

As this court has observed, the gay rights law “was enacted in order to protect people from pervasive and invidious discrimination on the basis of sexual orientation.”50 Gay & Lesbian Law Students Assn. v. Board *209of Trustees, 236 Conn. 453, 481-82, 673 A.2d 484 (1996). The antidiscrimination provisions of our gay rights law, no less than the provisions that Congress had enacted prior to Frontiero to counter gender discrimination; see Frontiero v. Richardson, supra, 411 U.S. 687 (plurality opinion) (citing Title VII of Civil Rights Act of 1964, Equal Pay Act of 1963 and proposed equal rights amendment to United States constitution); represent a legislative consensus that sexual orientation discrimination, like gender discrimination several decades ago, is widespread, invidious and resistant to change.

Gay persons, moreover, continue to “face an uphill battle in pursuing political success. The awareness of public hatred and the fear of violence that often accompanies it undermine efforts to develop an effective gay political identity. [Gay persons] are disinclined to risk *210retaliation by open identification with the movement, and potential allies from outside the gay [and lesbian] community may think twice about allying their fortunes with such a despised population. That may explain why many gay [and lesbian] officials hide their sexual orientation until they have built up considerable public trust, or why gay [and lesbian] candidates have not been elected to public office in due proportion to the size of the gay [and lesbian] community or [have not] enjoyed the same level of political success as blacks, Latinos, and other minority groups.” K. Wald, The Context of Gay Politics, in The Politics of Gay Rights (The University of Chicago Press, C. Rimmerman, K. Wald & C. Wilcox eds., 2000) pp. 1,14; see also, e.g., Jantz v. Muci, supra, 759 F. Sup. 1550 (“Due to the harsh penalties imposed by society on persons identified as homosexual, many homosexual persons conceal their sexual orientation. Silence, however, has its cost. It may allow a given individual to escape from the discrimination, abuse, and even violence which is often directed at homosexuals, but it ensures that homosexuals as a group are unheard politically.”).

With respect to the comparative political power of gay persons, they presently have no greater political power—in fact, they undoubtedly have a good deal less such influence—than women did in 1973, when the United States Supreme Court, in Frontiero, held that women are entitled to heightened judicial protection. Frontiero v. Richardson, supra, 411 U.S. 688 (plurality opinion). After all, at that time, women were not a true minority, and they had begun to flex their political muscle on the national scene. Indeed, the court in Frontiero accorded women protected status even though gender discrimination already was broadly prohibited by federal legislation—just as sexual orientation discrimination is statutorily prohibited in this state. Moreover, when Frontiero was decided, the proposed equal rights amendment to the United States constitution, *211which would have accorded women suspect class status; see id., 692 (Powell, J., concurring in the judgment) (explaining that equal rights amendment, “if adopted [would] resolve the substance of [the] precise question [before the court]”); had broad support in Congress, where it passed overwhelmingly; see 118 Cong. Rec. 9598 (1972) (Senate vote on H.R.J. Res. 208); 117 Cong. Rec. 35,815 (1971) (House vote on H.R.J. Res. 208); and among the states, where it nearly achieved the votes necessary for adoption. See R. Lee, A Lawyer Looks at the Equal Rights Amendment (Brigham Young University Press 1980) c. 5, p. 37. In addition, “both major political parties ha[d] repeatedly supported [the amendment] in their national party platforms”; S. Rep. No. 92-689 (1972) p. 2; and it had been endorsed by Presidents Eisenhower, Kennedy, Johnson and Nixon, along with an extraordinary array of civic, labor and legal organizations. Id., pp. 2-3. In 1974, a nationwide poll indicated overwhelming public support for the amendment. G. Steiner, Constitutional Inequality: The Political Fortunes of the Equal Rights Amendment (Brookings Institution 1985) c. 2, p. 27. In view of the conclusion of the court in Frontiero that women were entitled to heightened judicial protection despite their emergence as a growing political force and despite the widespread, bipartisan support for the equal rights amendment—the imminent ratification of which seemed all but assured— we see no justification for depriving gay persons of such protection. Tellingly, the defendants have proffered no justification for applying a different standard to gay persons under the state constitution than the court in Frontiero applied to women for purposes of the federal constitution.51

*212We also note that, despite the likelihood of ratification when Frontiero was decided in 1973, the equal rights amendment ultimately did not muster enough support among the states, and it therefore never was adopted. See R. Lee, supra, c. 5, p. 37. Thus, one of the lessons to be learned from Frontiero and its treatment of the equal rights amendment—an initiative that seemed far more likely to succeed nationally than any current effort to enact a gay marriage law in this state— is that, because support for particular legislation may ebb or flow at any time, the adjudication of the rights of a disfavored minority cannot depend solely on such an eventuality.

Finally, gay persons clearly lack the political power that African-Americans and women possess today. See, e.g., High Tech Gays v. Defense Industrial Security Clearance Office, supra, 909 F.2d 378 (Canby, J., dissenting) (“[c]ertainly, homosexuals as a class wield less political power than blacks, a suspect [class], or women, a quasi-suspect one”); see also Dean v. District of Columbia, supra, 653 A.2d351 (Ferren, J., concurring in part and dissenting in part) (observing that gay persons “have considerably less political power than African-Americans”). Yet political gains by African-Americans and women have not been found to obviate the need for heightened judicial scrutiny of legislation that draws distinctions on the basis of race or gender. We therefore agree fully with the California Supreme Court’s recent observation in recognizing gay persons as a suspect class under the California constitution: “[I]f a group’s current political powerlessness were a prerequisite to a characteristic’s being considered a constitutionally suspect basis for differential treatment, it would be impossible to justify the numerous decisions that continue to treat sex, race, and religion as suspect [or quasi-suspect] classifications. Instead, [the relevant case law] make[s] clear that the most important factors *213in deciding whether a characteristic should be considered a constitutionally suspect basis for classification are whether the class of persons who exhibit a certain characteristic historically has been subjected to invidious and prejudicial treatment, and whether society now recognizes that the characteristic in question generally bears no relationship to the individual’s ability to perform or contribute to society.” (Emphasis in original.) In re Marriage Cases, supra, 43 Cal. 4th 843. Under the standard for political powerlessness that the defendants advocate, however, African-Americans and women necessarily would have lost their protected status. The fact that courts have not seen fit to remove those groups from that status, even though they wield considerable political power, leads inexorably to the conclusion that gay persons cannot be deprived of heightened judicial protection merely because of their relatively limited political influence.52

*2143

In his dissenting opinion, Justice Borden expresses his agreement that gay persons satisfy the first three prongs of the suspectness inquiry, that is, they have suffered a deplorable history of invidious discrimination, their sexual orientation is a distinguishing characteristic that defines them as a discrete group, and a person’s sexual orientation bears no relation to a person’s ability to contribute to society. Injustice Borden’s view, however, gay persons are not entitled to heightened protection, even though they meet the first three criteria, because the political power of gay persons overrides those three considerations.53 In support of his conclusion, Justice Borden relies primarily on the existence of our state statutes barring discrimination against gay persons, the civil union law and the statements of several persons in favor of legislation supporting the right of gay persons to marry.54 We disagree with *215Justice Borden’s analysis and his conclusion because it is absolutely clear that, under the test that Justice Borden acknowledges is applicable to the equal protection provisions of both the federal and state constitutions, gay persons today are entitled to heightened protection under the state constitution no less than women were entitled to heightened protection under the federal constitution in 1973.

Our fundamental disagreement with Justice Borden stems from his assertion that the holding of Frontiero according women protected status under the federal constitution in 1973 is “irrelevant” to the state constitu*216tional issue raised by this case. Footnote 14 of Justice Borden’s dissenting opinion. To support this assertion, Justice Borden maintains that, because gender already is a suspect class under the state constitution, the status of women under the federal constitution is “beside the point.” Id. On the contrary, Justice Borden completely misses the point in attempting to explain why Frontiero and, in particular, its treatment of the political powerlessness component of the suspectness inquiry, is unimportant to this case. Simply put, that point is: if, as Justice Borden acknowledges, the court in Frontiero was correct in according women protected status under the same test that we apply for purposes of the state constitution, why would we deny gay persons, who have less political power than women possessed in 1973, the same measure of protection under the state constitution? This question is hardly irrelevant; in fact, it is the critical issue with respect to this component of the suspectness inquiry, for gay persons are entitled to have their claim for heightened constitutional protection under the state constitution given the same, evenhanded consideration of the political powerlessness standard that other historically maligned groups, including women, have received under the federal constitution.

In other words, as one commentator has explained, “[because] the term [political] ‘powerlessness’ is not self-defining . . . [t]here must be some yardstick of political power to which the power of [gay persons] can be compared.

“The only logical standard of comparison is other . . . quasi-suspect classes such as . . . women. If [women were] sufficiently powerless to be [accorded] . . . quasi-suspect [class status], then logically [gay persons] must be, at a minimum, more politically powerful than these groups if they are in fact too powerful to be a . . . quasi-suspect class.

*217“Amazingly [however], not a single court has ever compared the political power of [gay persons] to that of women ....

“The point, of course, is not that the courts should tolerate gender discrimination. The point is that the courts are applying a very different standard to [gay persons] than they have been applying to other [protected] groups. No court has been willing to evaluate the political power of women ... by the same standard that they have applied to [gay persons. Although] the equal protection of the laws does not require the same result for all groups seeking [quasi-suspect] class status, surely it requires that courts apply the same standards to all who seek judicial protection.” (Emphasis in original.) E. Gerstmann, supra, c. 4, pp. 81-83.

This is precisely the flaw in Justice Borden’s analysis. Because gay persons, like women, fully satisfy the first three criteria of the suspectness inquiry, it would be manifestly unfair to the plaintiffs, and to gay persons generally, to ignore or dismiss the analysis and result of Fronliero, which correctly concluded that women were not so politically powerful as to obviate the need for heightened judicial scrutiny of gender-based classifications. A brief recapitulation of the political status of women when Fronliero was decided makes it crystal clear that, upon application of the standard applied by the court in Fronliero, gay persons have the same right to protected status under the state constitution that women have been accorded under the federal constitution.55

*218As we previously have discussed, when Frontiero was decided in 1973, women wielded considerable political clout. In fact, women were not even a voting minority. Census data reveal that, in 1970, there were approximately 70 million women of voting age in the United States and approximately 63 million men of that age. See United States Census Bureau, “Democratic Trends in the 20th Century” (November, 2002) p. A-9, available at http://www.census.gov/prod/2002pubs/ censr-4.pdf. Thus, voting age women outnumbered voting age men by approximately 7 million. By contrast, gay persons undisputedly comprise a small minority of the population.

Furthermore, by the time Frontiero was decided in 1973, Congress already had passed comprehensive anti-discrimination legislation in recognition of the long history of discrimination to which women had been subjected. See Frontiero v. Richardson, supra, 411 U.S. 687 (plurality opinion). The court in Frontiero, however, accorded women protected status despite the existence of this legislation and notwithstanding the fact that they comprised a majority of the population. See id., 688. Of even greater significance for present purposes, however, the equal rights amendment was pending approval at that time, and its ratification would have accorded women status as a suspect class. In other words, upon ratification of that amendment, no statutory classification pertaining to women would have been sustainable unless the state could establish that the classification was truly necessary to achieve a compelling state interest. Thus, the equal rights amendment would have afforded women the highest possible level of constitutional protection. Most significantly, therefore, the constitutional protection to be afforded women under the equal rights amendment would have far exceeded, both in scope and in import, the statutory benefit of a civil *219union law and, in the event of its enactment, a same sex marriage law.

Because Justice Borden places so much emphasis on what he perceives to be the future of gay marriage in this state; see part I C 1 of Justice Borden’s dissenting opinion (quoting certain selected legislators voicing optimism about future of gay marriage in Connecticut); we look to the status of the equal rights amendment when Frontiero was decided in 1973. As we already have noted, the amendment passed overwhelmingly in Congress: the vote in the United States Senate in favor of the amendment was 84 to 8, with 7 abstaining; 118 Cong. Rec. 9598 (1972); and the vote in the United States House of Representatives was 354 to 24, with 51 abstaining. 117 Cong. Rec. 35,815 (1971). As one scholar has observed about that vote, “[t]he triumph of the [equal rights amendment] in Congress was complete, deliberate, and overpowering, an outcome clearly attributable to a congressional perception that a national consensus had been achieved.” G. Steiner, supra, c. 2, p. 26. “When the [e]qual [r]ights [a]mendment passed the Senate on March 22, 1972, it appeared to be riding an irresistible high. The Judiciary Committee had reported the resolution without amendment on a 15-1 vote. Hugh Scott of Pennsylvania, Republican leader in the Senate, then solicited and got an endorsement from President [Richard M.] Nixon. ‘Throughout [twenty-one] years,’ the president wrote, ‘I have not altered my belief that equal rights for women warrant a constitutional guarantee—and I therefore continue to favor the enactment of the constitutional amendment to achieve this goal.’ ” Id., p. 22. Thus, “[a] high level of optimism [for its ultimate approval] seemed well warranted. . . . House passage had been by nearly fifteen to one and Senate passage by better than ten to one. Congressional action reflected a bipartisan effort .... Unless experienced and politically sensitive fed*220eral officeholders were wildly out of touch with sentiment in the states, or compelling new considerations were to surface, or proponents were to commit some egregious blunder, ratification then seemed a foregone conclusion.” Id., p. 23.

Supporters of the equal rights amendment were therefore all but certain that it soon would become law. For example, United States Senator Birch Bayh, the principal proponent of the amendment in the Senate, expressed his view that the amendment would be ratified “with dispatch.” (Internal quotation marks omitted.) E. Shanahan, “Equal Rights Amendment Is Approved by Congress,” N.Y. Times, March 22,1972, p. Al. Moreover, in his testimony before the Senate, Senator Bayh explained that more than one half of the members of the Senate had sponsored the equal rights amendment, and that “[b]oth the Citizens’ Advisory Council on the Status of Women, created by President [John F.] Kennedy, and the President’s Task Force on Women’s Rights and Responsibilities, created by President Nixon, have recommended in strongest terms approval of the amendment.” 118 Cong. Rec. 8900 (1972). Senator Bayh also identified more than fifty major civic and professional organizations that supported the amendment, including the American Association of College Deans, American Association of University Women, American Civil Liberties Union, American Jewish Congress, American Newspaper Guild, American Nurses Association, Common Cause, Council for Christian Social Action, United Church of Christ, International Association of Human Rights Agencies, International Brotherhood of Painters and Allied Trades, International Brotherhood of Teamsters, International Union of United Automobile, Aerospace and Agricultural Implement Workers, National Association of Colored Women, National Education Association, National Organization for Women and United *221Automobile Workers. Id. Furthermore, the chief sponsor of the equal rights amendment in the House of Representatives, Representative Martha W. Griffiths, testified that, in her view, the amendment would “be ratified almost immediately.” 117 Cong. Rec. 35,815 (1971). In fact, “[w]ithin forty-eight hours of congressional passage, six states had ratified the [equal rights amendment], and within nine months, twenty-two states had ratified it.” A. Held, S. Herndon & D. Stager, “The Equal Rights Amendment: Why the ERA Remains Legally Viable and Properly Before the States,” 3 Wm. & Mary J. Women & L. 113, 116 (1997). The equal rights amendment ultimately was approved by thirty-five states, only three short of the thirty-eight states needed for ratification. R. Lee, supra, c. 5, p. 37.

Thus, in stark contrast to the proposed gay marriage bill on which Justice Borden relies in concluding that gay persons in this state are too politically powerful to warrant heightened constitutional protection, the equal rights amendment sailed through Congress and very nearly was ratified by the requisite number of states. As we have explained, moreover, the equal rights amendment would have provided women with the broadest and most comprehensive constitutional protection possible. Even though it appeared certain that the amendment would promptly receive final approval, and despite the political power manifested by such a feat, the court in Frontiero nevertheless concluded that women were entitled to heightened protection under the federal equal protection clause. Despite this precedent, Justice Borden attributes overriding political power to gay persons in this state—power that he concludes disqualifies them from heightened protection under the state constitution—on the basis of a few statements of support for a gay marriage bill that was not even submitted to a vote in the legislature because its supporters knew that, as in the past, the bill had no *222chance of passage. This analysis cannot be squared with Frontiero.

In sum, because, in 1973, (1) women constituted a majority of the population, (2) they possessed enormous potential electoral strength due to their majority status, (3) they were protected by comprehensive federal antidiscrimination legislation, and (4) imminent ratification of the equal rights amendment to the federal constitution appeared certain, there can be no question that women possessed more political power nationally in 1973 than gay persons currently possess in this state.56 It therefore is impossible to conclude that, even though the court in Frontiero properly determined that women were not disqualified from heightened constitutional protection by virtue of the political power that they possessed, gay persons in this state are disqualified from such protection because of their political power.57 In failing to acknowledge this fact—indeed, in failing even to reach the merits of this issue—Justice Borden avoids a critically important aspect of the plaintiffs’ equal protection claim, and, as a consequence, he reaches a result that is incompatible with precedent that he himself agrees is correct.58 Thus, it is apparent *223that Justice Borden’s conclusion that gay persons must *224be denied protected status under the state constitution is based on the application of a standard that differs markedly from the standard applied by the court in Frontiero.59 Because we agree both with the standard applied by the court in Frontiero and with its holding, *225we reject Justice Borden’s conclusion that women are entitled to greater protection under the federal constitution than gay persons are entitled to under the state constitution.

We note, finally, Justice Borden’s assertion that we are “alone in mandating gay marriage as a matter of state constitutional law in the presence of . . . a . . . civil union [law]” and an indication of “support for gay marriage through legislation.” This assertion, like Justice Borden’s suggestion that the political power of gay persons in this state is somehow unique is inaccurate. For example, in California, which has the equivalent of a civil union statute, the legislature twice passed a gay marriage bill, but, on each occasion, the bill was vetoed by the governor. See J. Tucker, “Schwarzenegger Vetoes Same-Sex Marriage Bill Again” (October 13, 2007), available at http://www.sfgate.com/ cgi-bin/article.cgi?f=/c/a/2007/10/13/BAT7SPC72.DTL. Thus, under the standard on which Justice Borden relies, gay persons in California have demonstrated far greater political power than gay persons in this state. Nevertheless, following the vetoes of the gay marriage legislation in California, the California Supreme Court concluded that, under that state’s constitution, gay persons, as a suspect class, cannot be barred from marrying the same sex person of their choice. See In re Marriage Cases, supra, 43 Cal. 4th 843-44,855-57. The Massachusetts Supreme Judicial Court also has determined that same sex marriage is mandated under the Massachusetts constitution and declaration of rights after expressly concluding that a civil union alternative, which was proposed by the Massachusetts legislature, *226would have been unconstitutional; see Opinions of the Justices to the Senate, supra, 440 Mass. 1209-10; notwithstanding significant support for gay marriage in that state. See National Gay and Lesbian Task Force, “Recent State Polls on Same-Sex Marriage and Civil Unions” (May 6, 2005), available at http:/www. thetaskforce.org/downloads/reports/reports/May2005 StatePolls.pdf. Furthermore, the highest courts of two other states have reserved judgment on whether civil unions will suffice to provide gay persons with the equal rights to which they have been found to be entitled under the state constitutions of those states. See Lewis v. Harris, supra, 188 N.J. 458-60; Baker v. State, supra, 170 Vt. 224-25. We therefore reject Justice Borden’s assertion that our state constitutional interpretation with respect to the rights of same sex couples is in any way unique or unprecedented.

4

In sum, the relatively modest political influence that gay persons possess is insufficient to rectify the invidious discrimination to which they have been subjected for so long. Like the political gains that women had made prior to their recognition as a quasi-suspect class, the political advances that gay persons have attained afford them inadequate protection, standing alone, in view of the deep-seated and pernicious nature of the prejudice and antipathy that they continue to face. Today, moreover, women have far greater political power than gay persons, yet they continue to be accorded status as a quasi-suspect class. See Breen v. Carlsbad Municipal Schools, supra, 138 N.M. 338 (explaining that intermediate scrutiny is appropriate with respect to discrimination based on sex “even though the darkest period of discrimination may have passed for [the] historically maligned group” and that “[such] scrutiny should still be applied to protect against more subtle forms of unconstitutional discrimi*227nation created by unconscious or disguised prejudice”). We conclude, therefore, that, to the extent that gay persons possess some political power, it does not disqualify them from recognition as a quasi-suspect class under the state constitution in view of the pervasive and invidious discrimination to which they historically have been subjected due to an innate personal characteristic that has absolutely no bearing on their ability to perform in or contribute to society.

VI

ADDITIONAL RELEVANT CONSIDERATIONS UNDER GEISLER

Although we conclude that gay persons meet each of the four factors identified by the United States Supreme Court for determining whether a group is entitled to heightened judicial scrutiny as a quasi-suspect class, we are obliged, under this court’s state constitutional jurisprudence, also to consider the extent to which any of the considerations identified by this court in State v. Geisler, supra, 222 Conn. 685, may counsel for or against recognizing gay persons as a quasi-suspect class.60 We therefore turn to those factors.

A

Textual Analysis

Article first, § 20, of the Connecticut constitution provides in relevant part that “[n]o person shall be denied the equal protection of the law . . . .” This provision prohibits the state from treating similarly situated persons differently without sufficient reason to do so. See *228part II of this opinion. Whether a legislative enactment passes muster under this portion of article first, § 20, frequently will depend on the level of judicial scrutiny to which the enactment is subject, a determination that in turn depends on whether the statutory classification affects a suspect or quasi-suspect class or infringes on a fundamental right. Because the pertinent language of article first, § 20, says nothing about that test or how it is to be applied, the provision is facially neutral and, therefore, does not favor either the plaintiffs or the defendants.61

The defendants maintain, however, that the remaining language of article first, § 20, as amended by article twenty-one of the amendments, supports their contention that gay persons do . not comprise a quasi-suspect class. That language provides that no person shall “be subjected to . . . discrimination in the exercise or enjoyment of his or her civil or political rights because of religion, race, color, ancestry, national origin, sex or physical or mental disability.” Conn. Const., amend. XXI. The defendants contend that, because sexual orientation is not included in the list of suspect classes enumerated in article first, § 20, as amended, sexual orientation cannot comprise a quasi-suspect class for purposes of the state constitution’s equal protection provisions. We reject this claim for the reasons that we expressed previously in part III of this opinion.

B

Decisions of This Court and the Appellate Court

This court never has considered whether classifications that discriminate against gay persons are subject *229to heightened scrutiny under the equal protection provisions of the state constitution. The Appellate Court recently addressed the issue,62 however, in State v. John M., 94 Conn. App. 667, 894 A.2d 376 (2006), rev’d on other grounds sub nom. State v. John F.M., 285 Conn. 528, 940 A.2d 755 (2008), and concluded that such classifications are entitled only to rational basis review on the basis of its reading of federal and sister state precedent. Id., 678-85. For several reasons, we are not persuaded by the Appellate Court’s analysis in John M. First, the Appellate Court decided the issue under the federal constitution, not the state constitution. See id., 678-79 n.10. Second, the Appellate Court did not apply the four-pronged test for determining whether a group *230is entitled to heightened protection but, rather, relied solely on case law from other jurisdictions. See id., 679-85. Third, for the reasons set forth in parts VI C and D of this opinion, the cases on which the Appellate Court did rely are not persuasive because those cases either failed to address the issue of whether gay persons comprise a suspect or quasi-suspect class; see Muth v. Frank, 412 F.3d 808, 817-18 (7th Cir.), cert. denied, 546 U.S. 988, 126 S. Ct. 575, 163 L. Ed. 2d 480 (2005); Standhardt v. Superior Court, 206 Ariz. 276, 283-85, 77 P.3d 451 (App. 2003), review denied sub nom. Standhardt v. MCSC, Docket No. CV-03-0422-PR, 2004 Ariz. LEXIS 62 (Ariz. May 25, 2004); People v. Downin, 357 Ill. App. 3d 193, 199-200, 828 N.E.2d 341, appeal denied, 216 Ill. 2d 703, 839 N.E.2d 1029 (2005); failed to engage in any analysis of that issue, relying instead on the fact that, to date, the United States Supreme Court has not held that sexual orientation constitutes a suspect or quasi-suspect classification; see Johnson v. Johnson, 385 F.3d 503, 532 (5th Cir. 2004); State v. Limon, 280 Kan. 275, 286, 122 P.3d 22 (2005); or were predicated on precedent that has been overruled. See Lofton v. Secretary of the Dept. of Children & Family Services, 358 F.3d 804, 818 & n.16 (11th Cir. 2004), cert. denied, 543 U.S. 1081, 125 S. Ct. 869, 160 L. Ed. 2d 825 (2005). Because the analysis in John M. is not persuasive, it provides no support for the defendants’ claim that gay persons are not entitled to recognition as a quasi-suspect class.

C

Persuasive Federal Precedent

When interpreting our state constitution, it is appropriate to consider relevant federal precedent. “We employ this precedent for guidance and analogy [in construing our own constitution, however, only] when the federal authorities axe ‘logically persuasive and well-*231reasoned.’ W. Brennan, ‘State Constitutions and the Protection of Individual Rights,’ 90 Harv. L. Rev. 489, 502 (1977) (‘state court judges, and also practitioners, do well to scrutinize constitutional decisions by federal courts, [but] only if they are found to be logically persuasive and well-reasoned, paying due regard to precedent and the policies underlying specific constitutional guarantees, may they properly claim persuasive weight as guideposts when interpreting counterpart state guarantees’).” State v. Joyce, 229 Conn. 10, 20, 639 A.2d 1007 (1994).

As the defendants correctly assert, the vast majority of federal circuit courts that have considered the issue have concluded that sexual orientation is not a suspect or quasi-suspect classification, and, consequently, legislation that classifies on the basis of sexual orientation is subject to rational basis review.63 These courts, however, relied primarily on the holding of Bowers v. Hardwick, supra, 478 U.S. 196, in which the United States Supreme Court upheld the constitutionality of a Georgia statute that criminalized consensual homosexual sodomy.64 Bowers held that gay persons have no fundamen*232tal right to engage in such conduct; id., 190-92; that rational basis review of the antisodomy statute therefore was appropriate; see id., 196; and that the Georgia legislature’s moral disapproval of that conduct constituted sufficient justification for the law. See id. Although Bowers was a due process case; see id., 190; the various federal circuit courts faced with equal protection challenges to statutory classifications based on sexual orientation have reasoned that because, under Bowers, it is constitutionally permissible to criminalize intimate homosexual conduct, a group that is defined by that conduct cannot constitute a suspect or quasi-suspect class. E.g., Equality Foundation of Greater Cincinnati, Inc. v. Cincinnati, 54 F.3d 261, 266 (6th Cir. 1995) (“[s]ince Bowers, every circuit court which has addressed the issue has decreed that homosexuals are entitled to no special constitutional protection, as either a suspect or a quasi-suspect class, because the conduct which places them in that class is not constitutionally protected”), vacated on other grounds and remanded, 518 U.S. 1001, 116 S. Ct. 2519, 135 L. Ed. 2d 1044 (1996); Steffan v. Perry, 41 F.3d 677, 684 n.3 (D.C. Cir. 1994) (“if the government can criminalize homosexual conduct, a group that is defined by reference to that conduct cannot constitute a suspect class” [internal quotation marks omitted]); High Tech Gays v. Defense Industrial Security Clearance Office, 895 F.2d 563, 571 (9th Cir. 1990) (“[o]ther circuits are in accord and have held that although the court in [Bowers] analyzed the constitutionality of the [antisodomy] statute on a due process rather than equal protection basis, by the [Bowers] majority holding that the [constitution confers no fundamental right [on] homosexuals to engage in sod*233omy, and because homosexual conduct can thus be criminalized, homosexuals cannot constitute a suspect or quasi-suspect class entitled to greater than rational basis review for equal protection purposes”); Woodward v. United States, 871 F.2d 1068, 1076 (Fed. Cir. 1989) (“[a]fter [Bowers] it cannot logically be asserted that discrimination against homosexuals is constitutionally infirm”), cert. denied, 494 U.S. 1003, 110 S. Ct. 1295, 108 L. Ed. 2d 473 (1990). “Thus, the impact of Bowers ... on the equal protection claims of [gay persons was] enormous.” E. Gerstmann, supra, c. 4, p. 69. “Bowers . . . prevented] courts from finding [gay persons] to be a suspect or quasi-suspect class even if [gay persons were] able to demonstrate a history of discrimination and substantial current discrimination against them.” Id.

Because Bowers was so widely viewed as disqualifying gay persons from recognition as a suspect or quasi-suspect class, in the wake of Bowers, courts gave only cursory consideration to claims by gay persons that statutes that discriminate on the basis of sexual orientation are subject to enhanced judicial scrutiny. Thus, as one court has noted, “given [Bowers’] sanction of such a severe curtailment of the liberty of [gay persons, it is not surprising that] the issue of whether states should or must permit marriage between same-sex partners has only recently come into public debate.” In re Marriage Cases, 49 Cal. Rptr. 3d 675, 703 (App. 2006), rev’d on other grounds, 43 Cal. 4th 757, 183 P.3d 384, 76 Cal. Rptr. 3d 683 (2008).

Five years ago, however, in Lawrence v. Texas, supra, 539 U.S. 578, the United States Supreme Court overruled Bowers, thus removing the precedential underpinnings of the federal case law supporting the defendants’ claim that gay persons are not a quasi-suspect class. The court in Lawrence acknowledged that, in framing the issue in Bowers as it did, that is, “whether the [f]ederal [c]on*234stitution confers a fundamental right [on] homosexuals to engage in sodomy”; Bowers v. Hardwick, supra, 478 U.S. 190; the court had “fail[ed] to appreciate the extent of the liberty at stake. To say that the issue in Bowers was simply the right to engage in certain sexual conduct demeans the claim the individual put forward, just as it would demean a married couple were it to be said [that] marriage is simply about the right to have sexual intercourse.” Lawrence v. Texas, supra, 567. The court identified the real issue, both in Bowers and in Lawrence, as whether the right to liberty that gay persons share with all of our citizenry under the due process clause of the United States constitution includes the right to engage in “sexual practices common to a homosexual lifestyle” without government intervention. Id., 578.

The court in Lawrence also explained that “[t]he foundations of Bowers have sustained serious erosion from . . . [two] decisions” that were decided after Bowers, namely, Planned Parenthood v. Casey, 505 U.S. 833, 112 S. Ct. 2791, 120 L. Ed. 2d 674 (1992), and Romer v. Evans, 517 U.S. 620, 116 S. Ct. 1620, 134 L. Ed. 2d 855 (1996). Lawrence v. Texas, supra, 539 U.S. 576. The court in Lawrence further explained: “In [Casey], the [c]ourt reaffirmed the substantive force of the liberty protected by the [d]ue [p]rocess [c]lause. The Casey decision again confirmed that our laws and tradition afford constitutional protection to personal decisions relating to marriage, procreation, contraception, family relationships, child rearing, and education. . . . In explaining the respect the [constitution demands for the autonomy of the person in making these choices, [the court] stated as follows:

“ ‘These matters, involving the most intimate and personal choices a person may make in a lifetime, choices central to personal dignity and autonomy, are central to the liberty protected by the [fourteenth [a]mend*235ment. At the heart of liberty is the right to define one’s own concept of existence, of meaning, of the universe, and of the mystery of human life. Beliefs about these matters could not define the attributes of personhood were they formed under compulsion of the [s]tate.’ . . .

“Persons in a homosexual relationship may seek autonomy for these purposes, just as heterosexual persons do. The decision in Bowers would deny them this right.” (Citations omitted.) Id., 573-74.

The court continued: “The second post-Bowers case of principal relevance is Romer .... There the [c]ourt struck down class-based legislation directed at homosexuals as a violation of the [e]qual [protection [c]lause. Romer invalidated an amendment to Colorado’s [c]onstitution which named as a solitary class persons who were homosexuals, lesbians, or bisexual either by ‘orientation, conduct, practices or relationships’ . . . and deprived them of protection under state antidiscrimination laws. We concluded that the provision was ‘bom of animosity toward the class of persons affected’ and further that it had no rational relation to a legitimate governmental purpose.” (Citations omitted.) Id., 574.

Lawrence thereafter expressly endorsed the following portion of Justice John Paul Stevens’ dissent in Bowers: “ ‘Our prior cases make two propositions abundantly clear. First, the fact that the governing majority in a [s]tate has traditionally viewed a particular practice as immoral is not a sufficient reason for upholding a law prohibiting the practice; neither histoiy nor tradition could save a law prohibiting miscegenation from constitutional attack. Second, individual decisions by married persons, concerning the intimacies of their physical relationship, even when not intended to produce offspring, are a form of “liberty” protected by the [d] ue [p]rocess [c]lause of the [f]ourteenth [a]mend*236ment. Moreover, this protection extends to intimate choices by unmarried as well as married persons.’ ” Id., 577-78, quoting Bowers v. Hardwick, supra, 478 U.S. 216 (Stevens, J., dissenting). Thus, as the court stated, “[w]hen sexuality finds overt expression in intimate conduct with another person, the conduct can be but one element in a personal bond that is more enduring. The liberty protected by the [constitution allows homosexual persons the right to make this choice.” Lawrence v. Texas, supra, 539 U.S. 567. Bowers' contrary conclusion, the court observed, “demeans the lives of homosexual persons”; id., 575; by depriving them of the “respect for their private lives”; id., 578; that the constitution guarantees.

Lawrence represents a sea change in United States Supreme Court jurisprudence concerning the rights of gay persons. To a very substantial degree, Lawrence undermines the validity of the federal circuit court cases that have held that gay persons are not entitled to heightened judicial protection because, as we have explained, the courts in those cases relied heavily— and in some cases exclusively—on Bowers to support their conclusions. See Witt v. Dept. of the Air Force, 527 F.3d 806, 828 (9th Cir. 2008) (Canby, J., concurring in part and dissenting in part) (“[b]ecause Lawrence unequivocally overruled Bowers, it undercut the theory [and] reasoning underlying [the cases that have relied on Bowers to deny gay persons heightened protection under the federal equal protection clause] in such a way that the cases are clearly irreconcilable” [internal quotation marks omitted]). In stark contrast to Bowers, Lawrence recognizes that gay persons, no less than heterosexuals, are constitutionally entitled to freedom from state interference in matters of sexual intimacy. In acknowledging this liberty interest, Lawrence rejected the notion that moral disapproval of gay persons can justify discriminatory state action that *237infringes on their right of personal autonomy. See Lawrence v. Texas, supra, 539 U.S. 578 (state antisodomy statute “furthers no legitimate state interest which can justify its intrusion into the personal and private life of the individual”). Thus, whereas Bowers erected a profound impediment to gay persons seeking protected status, Lawrence removed that barrier. Gay persons, therefore, cannot be deprived of suspect or quasi-suspect class status merely because others may find their intimate sexual conduct objectionable, repugnant or immoral. In fact, after Lawrence, the social and moral disapprobation that gay persons historically have faced supports their claim that they are entitled to heightened protection under the state constitution.65 See part V A of this opinion.

Finally, we reject the defendants’ contention that, in Romer v. Evans, supra, 517 U.S. 631-32, the United States Supreme Court implicitly concluded that gay persons do not comprise a suspect or quasi-suspect class under the federal constitution because the court applied rational basis review, rather than heightened scrutiny, *238in sustaining an equal protection challenge to a Colorado state constitutional amendment that prohibited “all legislative, executive or judicial action at any level of state or local government designed to protect . . . [gay] persons . . . .”66 Id., 624. Because the court indicated that the Colorado constitutional amendment could not withstand even rational basis review, the lowest level of judicial scrutiny, the court had no reason to decide whether heightened review was appropriate. See id., 632. In the absence of any contrary indication in Romer, we must presume that the court followed its own well established principle “never to formulate a rule of constitutional law broader than is required by the precise facts to which it is to be applied.” (Internal quotation marks omitted.) Brockett v. Spokane Arcades, Inc., 472 U.S. 491, 501, 105 S. Ct. 2794, 86 L. Ed. 2d 394 (1985). Indeed, in accordance with this general rule of judicial restraint, the United States Supreme Court previously has declined to decide whether heightened scrutiny is applicable when a statutory classification fails rational basis review. See Hooper v. Bernalillo County Assessor, 472 U.S. 612, 618, 105 S. Ct. 2862, 86 *239L. Ed. 2d 487 (1985) (declining to determine whether to apply heightened scrutiny when classification did not meet rational basis test because “if the statutory scheme cannot pass even the minimum rationality test, [the court’s] inquiry ends”); cf. Mississippi University for Women v. Hogan, 458 U.S. 718, 724 n.9, 102 S. Ct. 3331, 73 L. Ed. 2d 1090 (1982) (declining to decide whether to apply strict scrutiny when classification could not survive intermediate scrutiny). Romer, therefore, lends no support to the defendants’ claim that statutory classifications based on sexual orientation are subject only to rational basis review.

In sum, although federal case law is nearly unanimous in concluding that gay persons are not a suspect or quasi-suspect class, those cases ultimately are not persuasive because they rely so heavily on Bowers v. Hardwick, supra, 478 U.S. 186, which has been overruled. Lawrence v. Texas, supra, 539 U.S. 578 (‘Bowers was not correct when it was decided, and it is not correct today. It ought not to remain binding precedent. Bowers . . . should be and now is overruled.”). In addition, the federal circuit courts that have determined that gay persons are not entitled to heightened protection have failed altogether to reconcile their analyses with the one that the United States Supreme Court used in concluding that women comprise a quasi-suspect class. See part V D of this opinion. Indeed, in our view, the individual federal circuit and district courts and judges that have analyzed the issue most carefully and applied the standard for determining a group’s status as a suspect or quasi-suspect class most consistently with the Supreme Court’s jurisprudence have concluded that statutes discriminating against gay persons are, in fact, subject to heightened scrutiny. See, e.g., High Tech Gays v. Defense Industrial Security Clearance Office, supra, 909 F.2d 376-82 (Canby, J., dissenting); Watkins v. United States Army, supra, 875 F.2d 724-28 (Norris, *240J., concurring in the judgment); Able v. United States, supra, 968 F. Sup. 862-64; Equality Foundation of Greater Cincinnati, Inc. v. Cincinnati, supra, 860 F. Sup. 434-40; Jantz v. Muci, supra, 759 F. Sup. 1547-51. Thus, although the weight of federal precedent favors the defendants, the weight of persuasive federal precedent favors the plaintiffs.

D

Persuasive Sister State Precedent

The majority of sister state courts that have addressed the issue also have concluded that gay persons are not a suspect or quasi-suspect class. See, e.g., Conaway v. Deane, supra, 401 Md. 277; Hernandez v. Robles, supra, 7 N.Y.3d 364-65; Andersen v. King County, supra, 158 Wash. 2d 21, 24; see also State v. Limon, supra, 280 Kan. 286-87 (court’s reading of federal precedent led it to conclude that classification based on sexual preference was subject to rational basis review); Dean v. District of Columbia, supra, 653 A.2d 308 (affirming in per curiam opinion trial court’s refusal to afford gay persons heightened protection under fifth amendment to federal constitution). The California Supreme Court, however, recently determined that gay persons do qualify as a suspect class under the equal protection provisions of that state’s constitution; In re Marriage Cases, supra, 43 Cal. 4th 840-41; and that the reasons given by the state of California for barring same sex couples from marrying were insufficient to justify the prohibition. Id., 854-56.67 We conclude that the state *241court cases that have determined that gay persons do not constitute a quasi-suspect class, like the federal cases described in this part of the opinion, employed a flawed analysis, and, therefore, they do not constitute persuasive authority.

In three of the cases concluding that gay persons do not constitute a protected class, the courts did so without applying the four-pronged test used by the United States Supreme Court for determining whether a group qualifies as a suspect or quasi-suspect class. In one such case, State v. Limon, supra, 280 Kan. 275, the Kansas Supreme Court invalidated, on equal protection grounds, a criminal statute that resulted in punishment for unlawful voluntary sexual conduct between members of the opposite sex that was less harsh than the punishment for the same conduct between members of the same sex.68 Id., 276. Although ultimately conclud*242ing that the statute did not satisfy even rational basis review; id., 301; the court first rejected the defendant’s claim that heightened scrutiny was warranted on the basis of the United States Supreme Court’s decisions in Lawrence v. Texas, supra, 539 U.S. 558, and Romer v. Evans, supra, 517 U.S. 620; see State v. Limon, supra, 286-87; in which the United States Supreme Court struck down the legislation at issue in those cases as lacking a rational relation to a legitimate state objective.69 See Lawrence v. Texas, supra, 578; Romer v. Evans, supra, 634. For the reasons set forth in part VI C of this opinion, we disagree that the court’s apparent application of the rational basis test in Lawrence and Romer has any bearing on whether gay persons constitute a quasi-suspect class.

In a second case, Hernandez v. Robles, supra, 7 N.Y.3d 361, 365, the New York Court of Appeals rejected an equal protection challenge to the state’s prohibition against same sex marriage under the New York state constitution. In so doing, the court declined to decide whether, for purposes other than marriage, gay persons comprise a suspect or quasi-suspect class. See id., 364. Instead, the court concluded that “[a] person’s preference for the sort of sexual activity that cannot lead to the birth of children is relevant to the [s]tate’s interest in fostering relationships that will serve children best”; id., 364-65; and, therefore, it was appropriate to apply rational basis review to the state’s ban on same sex marriage. Id. Because we fundamentally disagree with *243the court in Hernandez that a group seeking suspect or quasi-suspect class status is not entitled to a determination of whether it falls into one of those two categories unless the statutory classification at issue is first deemed to be irrational as applied to the group, however, we find the case unpersuasive. This approach is untenable because it turns the suspectness inquiry on its head: any group that is deemed to be entitled to heightened judicial protection because of past invidious discrimination has the right to have all statutes that discriminate against its members subjected to heightened scrutiny. In contrast to the Hernandez majority, Chief Judge Kaye, in dissent, engaged in the requisite suspectness inquiry, and explained—persuasively, in our view—why statutes that discriminate against gay persons should be subject to heightened judicial scrutiny. Id., 387-89 (Kaye, C. J., dissenting).

The final case to conclude that gay persons are not a suspect or quasi-suspect class without performing the four-pronged equal protection analysis is Dean v. District of Columbia, supra, 653 A. 2d 307, in which the District of Columbia Court of Appeals concluded that the applicable statutory scheme barring same sex marriage did not discriminate against gay persons, first, because marriage, by definition, is limited to opposite sex couples; id., 361 (Terry, J.); and second, because the statute was not motivated by any invidious or discriminatory purpose. See id., 362-63 (Steadman, J., concurring). Because the fact that marriage traditionally has been defined as a union between a man and a woman does not insulate from judicial review a statute that defines marriage in accordance with that definition, and because legislation that has a discriminatory effect may violate equal protection irrespective of the motivation underlying the enactment, we do not find Dean to be persuasive precedent.70

*244In contrast to the foregoing cases, the Maryland Court of Appeals, in Conaway v. Deane, supra, 401 Md. 278-94, and the Washington Supreme Court, in Andersen v. King County, supra, 158 Wash. 2d 19-24, did apply the four part test for determining whether a group is entitled to heightened protection in holding that gay persons do not qualify as a suspect or quasi-suspect class under the Maryland and Washington state constitutions, respectively.71 In so concluding, both courts determined that the plaintiffs had failed to demonstrate, first, that homosexuality is a strictly immutable characteristic and, second, that gays and lesbians are politically powerless because of the enactment of state statutes prohibiting sexual orientation discrimination. See Conaway v. Deane, supra, 286, 292-94; Andersen v. King County, supra, 20, 21. For the reasons set forth in part V C and D of this opinion, we disagree with those cases because the distinguishing characteristic does not need to be strictly immutable and because legislation barring discrimination on the basis of sexual orientation is insufficient to establish that gay persons possess political power adequate to counter the pervasive and extreme discrimination to which they historically have been subjected.

Although the opinion of the California Supreme Court in In re Marriage Cases, supra, 43 Cal. 4th 757, repre*245sents the minority view, we agree fundamentally with the analysis and conclusion of that case that gay persons are entitled to heightened judicial protection as a suspect72 class. Id., 843, 847. In deciding that issue, the court first observed that the state had conceded that sexual orientation is a characteristic that (1) bears no relation to a person’s ability to perform or contribute to society, (2) is associated with pernicious discrimination marked by a history of legal and social disabilities, and (3) is immutable for purposes of the suspectness inquiry. Id., 841-42. Although California case law generally does not require a showing by the group seeking suspect class status that it is politically powerless, the state of California maintained that the court should adopt that requirement as a prerequisite to the recognition of a suspect class and, further, that gay persons did not meet that standard. Id., 842-43. The court rejected the need for a definitive or categorical showing of political powerlessness, observing that such a requirement would be impossible to square with the fact that classifications based on gender and race continue to be treated as suspect. Id., 843. The court emphasized, rather, that the most important consideration in the determination of a group’s entitlement to recognition as a suspect class is whether that group has been subjected to invidious and prejudicial treatment because of a distinguishing characteristic that bears no relation to the individual’s ability to perform or contribute to society. Id. As the court explained, “courts must look closely at classifications based on that characteristic lest outdated social stereotypes result in invidious laws or practices.” (Emphasis in original; internal quota*246tion marks omitted.) Id. We agree with the California Supreme Court that “[t]his rationale clearly applies to statutory classifications that mandate differential treatment on the basis of sexual orientation.” Id.

For the foregoing reasons, we are not persuaded by the logic or analysis of the courts that have declined to grant suspect or quasi-suspect status to gay persons. We are persuaded, rather, by the California Supreme Court in In re Marriage Cases, supra, 43 Cal. 4th 841-43, and by the dissenting opinion of Chief Judge Kaye in Hernandez v. Robles, supra, 7 N.Y.3d 387-89 (Kaye, C. J., dissenting). We reach this conclusion because, in our view, the California court and Chief Judge Kaye have applied the relevant criteria most objectively and with due regard for the manner in which those criteria have been applied to other quasi-suspect and suspect groups. Although the decision of the California Supreme Court and the dissenting opinion of Chief Judge Kaye reflect the minority position, we believe that they nevertheless represent the most persuasive sister state precedent.

E

Economic and Sociological Considerations73

We address, finally, the sixth Geisler factor, which requires us to consider the public policy implications of recognizing gay persons as a quasi-suspect class under our state constitution. See State v. Diaz, 226 Conn. 514, 540, 628 A.2d 567 (1993) (“[i]n effect, [the sixth Geisler] factor directs our attention to considerations of public policy”). Of course, granting gay persons quasi-suspect class status would not automatically *247result in the conclusion that same sex couples are constitutionally entitled to marry because, even if gay persons are accorded such status, the state still may be able to establish a sufficiently strong reason to deny them the right to marry. At a minimum, however, recognizing gay persons as a quasi-suspect class would substantially increase the likelihood of a determination that same sex couples are entitled to marry in view of the fact that the state would be required to provide strong justification for denying them that right.74 Accordingly, we consider the public policy ramifications of invalidating the statutory scheme barring same sex marriage. For several reasons, we conclude that this factor militates strongly in favor of the plaintiffs.

First, granting same sex couples the right to marry “will not alter the substantive nature of the legal institution of marriage; same-sex couples who choose to enter into the relationship with that designation will be subject to the same duties and obligations to each other, to their children, and to third parties that the law currently imposes [on] opposite-sex couples who marry.” In re Marriage Cases, supra, 43 Cal. 4th 854. Nor will same sex marriage deprive opposite sex couples of any rights. In other words, limiting marriage to opposite sex couples is not necessaiy to preserve the rights that those couples now enjoy. In this regard, removing the barrier to same sex marriage is no different than the action taken by the United States Supreme Court in Loving v. Virginia, supra, 388 U.S. 1, when it invalidated laws barring marriage between persons of different races. Although it is true that authorizing same sex couples to marry represents a departure from the way marriage historically has been defined, the change would expand the right to marry without any adverse effect on those *248already free to exercise the right.75 We therefore agree with the Massachusetts Supreme Judicial Court that “broadening civil marriage to include same-sex couples . . . [will] not disturb the fundamental value of marriage in our society” and “[Recognizing the right of an individual to marry a person of the same sex will not diminish the validity or dignity of opposite-sex marriage, any more than recognizing the right of an individual to marry a person of a different race devalues the marriage of a person who marries someone of her own race. If anything, extending civil marriage to same-sex couples reinforces the importance of marriage to individuals and communities. That same-sex couples are willing to embrace marriage’s solemn obligations of exclusivity, mutual support, and commitment to one another is a testament to the enduring place of marriage in our laws and in the human spirit.”76 Goodridge v. Dept. of Public Health, supra, 440 Mass. 337.

Second, although “retention of the limitation of marriage to opposite-sex couples is not needed to preserve the rights and benefits of opposite-sex couples, the exclusion of same-sex couples from the designation of marriage works a real and appreciable harm [on] same-*249sex couples and their children. . . . [B]ecause of the long and celebrated history of the term ‘marriage’ and the widespread understanding that this word describes a family relationship unreservedly sanctioned by the community, the statutory provisions that continue to limit access to this designation exclusively to opposite-sex couples—while providing only a novel, alternative institution for same-sex couples—likely will be viewed as an official statement that the family relationship of same-sex couples is not of comparable stature or equal dignity to the family relationship of opposite-sex couples.” In re Marriage Cases, supra, 43 Cal. 4th 855.

For this reason, the ban on same sex marriage is likely to have an especially deleterious effect on the children of same sex couples. A primary reason why many same sex couples wish to marry is so that their children can feel secure in knowing that their parents’ relationships are as valid and as valued as the marital relationships of their friends’ parents. “Excluding same-sex couples from civil marriage will not make children of opposite-sex marriages more secure, but it does prevent children of same-sex couples from enjoying the immeasurable advantages that How from the assurance of a stable family structure in which the children will be reared, educated, and socialized.”77 (Internal quotation *250marks omitted.) Goodridge v. Dept. of Public Health, supra, 440 Mass. 335.

Third, because of the long history of discrimination that gay persons have faced, there is a high likelihood that the creation of a second, separate legal entity for same sex couples will be viewed as reflecting an official state policy that that entity is inferior to marriage, and that the committed relationships of same sex couples are of a lesser stature than comparable relationships of opposite sex couples. As a consequence, “retaining the designation of marriage exclusively for opposite-sex couples and providing only a separate and distinct designation for same-sex couples may well have the effect of perpetuating a more general premise [namely] . . . that gay individuals and same-sex couples are in some respects ‘second-class citizens’ who may, under the law, be treated differently from, and less favorably than, heterosexual individuals or opposite-sex couples.” In re Marriage Cases, supra, 43 Cal. 4th 784-85; see also Goodridge v. Dept. of Public Health, supra, 440 Mass. 333 (statutory bar on same sex marriage “confers an official stamp of approval on the destructive stereotype that same-sex relationships are inherently unstable and inferior to opposite-sex relationships and are not worthy of respect”).

Finally, religious autonomy is not threatened by recognizing the right of same sex couples to marry civilly. Religious freedom will not be jeopardized by the marriage of same sex couples because religious organizations that oppose same sex marriage as irreconcilable *251with their beliefs will not be required to perform same sex marriages or otherwise to condone same sex marriage or relations. Because, however, marriage is a state sanctioned and state regulated institution, religious objections to same sex marriage cannot play a role in our determination of whether constitutional principles of equal protection mandate same sex marriage.

F

Summary

Application of the Geisler factors does not alter our conclusion that gay persons are entitled to recognition as a quasi-suspect class. Persuasive federal and state precedent, albeit representative of the minority view, and considerations of public policy, all support such recognition. Heightened review of our state’s ban on same sex marriage is therefore appropriate. We now consider that remaining issue.

VII

APPLICATION OF THE HEIGHTENED SCRUTINY STANDARD

The test for determining whether the reasons given by the state in defense of the statutory classification at issue are sufficiently strong to satisfy heightened judicial scrutiny is settled. “Focusing on the differential treatment or denial of opportunity for which relief is sought, the reviewing court must determine whether the proffered justification is exceedingly persuasive. The burden of justification is demanding and it rests entirely on the [s]tate. . . . The [s]tate must show at least that the [challenged] classification serves important governmental objectives and that the discriminatory means employed are substantially related to the achievement of those objectives. . . . The justification must be genuine, not hypothesized or invented post hoc in response to [the] litigation. And it must not rely on *252overbroad generalizations about the different talents, capacities, or preferences of [the groups being classified].” (Citations omitted; internal quotation marks omitted.) United States v. Virginia, supra, 518 U.S. 532-33. Thus, “[i]n cases of this genre, [United States Supreme Court] precedent instructs that ‘benign’justifications proffered in defense of categorical exclusions will not be accepted automatically; a tenable justification must describe actual state purposes, not rationalizations for actions in fact differently grounded.” Id., 535-36; see also Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 472 (Marshall, J., concurring in the judgment in part and dissenting in part) (“The government must establish that the classification is substantially related to important and legitimate objectives ... so that valid and sufficiently weighty policies actually justify the departure from equality. Heightened scrutiny . . . seek[s] to assure that the hostility or thoughtlessness with which there is reason to be concerned has not carried the day. By invoking heightened scrutiny, the [c]ourt recognizes, and compels lower courts to recognize, that a group may well be the target of the sort of prejudiced, thoughtless, or stereotyped action that offends principles of equality found in [the equal protection clause]. [When] classifications based on a particular characteristic have done so in the past, and the threat that they may do so remains, heightened scrutiny is appropriate.” [Citation omitted.]).

The defendants posit two essential reasons why the legislature has prohibited same sex marriage: (1) to promote uniformity and consistency with the laws of other jurisdictions; and (2) to preserve the traditional definition of marriage as a union between one man and one woman.78 The defendants contend that these *253reasons justify the statutory prohibition against same sex marriage under the heightened standard of review that is applicable to statutes that discriminate against quasi-suspect classes.79

The defendants’ first proffered justification, that is, uniformity and consistency with other state and federal laws, may be rationally related to the state’s interest in limiting marriage to opposite sex couples, but it cannot withstand heightened scrutiny. Although the defendants maintain that this reason is sufficient to satisfy their demanding burden, they have identified no precedent in support of their claim. Indeed, beyond the mere assertion that uniformity and consistency with the laws of other jurisdictions represent a truly important gov*254emmental interest, the defendants have offered no reason why that is so, and we know of none. In the absence of such a showing, the defendants cannot prevail on their claim that the state’s interest in defining marriage as most other jurisdictions do is sufficiently compelling to justify the discriminatory effect that that definition has on gay persons.

It is abundantly clear that preserving the institution of marriage as a union between a man and a woman is the overriding reason why same sex couples have been barred from marrying in this state.80 We therefore must determine whether this reason alone is sufficient to justify the statutory ban on same sex marriage.

Before doing so, however, we note that the defendants expressly have disavowed any claim that the legislative decision to create a separate legal framework for committed same sex couples was motivated by the belief that the preservation of marriage as a heterosexual institution is in the best interests of children, or that prohibiting same sex couples from marrying promotes responsible heterosexual procreation, two reasons often relied on by states in defending statutory provisions barring same sex marriage against claims that those provisions do not pass even rational basis review. See, e.g., Hernandez v. Robles, supra, 7 N.Y.3d 359-60. *255In the present case, the defendants’ sole contention is that the legislature has a compelling interest in retaining the term “marriage” to describe the legal union of a man and woman because “that is the definition of marriage that has always existed in Connecticut . . . and continues to represent the common understanding of marriage in almost all states in the country.” The defendants acknowledge that many legislators hold “strong personal beliefs . . . about the fundamental nature of marriage” as being between a man and a woman, and that no measure providing equal rights for same sex couples would have passed the legislature unless it expressly defined marriage in those terms.

Although we acknowledge that many legislators and many of their constituents hold strong personal convictions with respect to preserving the traditional concept of marriage as a heterosexual institution, such beliefs, no matter how deeply held, do not constitute the exceedingly persuasive justification required to sustain a statute that discriminates on the basis of a quasi-suspect classification. “That civil marriage has traditionally excluded same-sex couples—i.e., that the ‘historic and cultural understanding of marriage’ has been between a man and a woman—cannot in itself provide a [sufficient] basis for the challenged exclusion. To say that the discrimination is ‘traditional’ is to say only that the discrimination has existed for a long time. A classification, however, cannot be maintained merely ‘for its own sake’ [Romer v. Evans, supra, 517 U.S. 635]. Instead, the classification ([that is], the exclusion of gay [persons] from civil marriage) must advance a state interest that is separate from the classification itself [see id., 633, 635]. Because the ‘tradition’ of excluding gay [persons] from civil marriage is no different from the classification itself, the exclusion cannot be justified on the basis of ‘history.’ Indeed, the justification of ‘tradition’ does not explain the classification; it merely *256repeats it. Simply put, a history or tradition of discrimination—no matter how entrenched—does not make the discrimination constitutional . . . .” (Citation omitted.) Hernandez v. Robles, supra, 7 N.Y.3d 395 (Kaye, C. J., dissenting); cf. Goodridge v. Dept. of Public Health, supra, 440 Mass. 348 (Greaney, J., concurring) (“[t]o define the institution of marriage by the characteristics of those to whom it always has been accessible, in order to justify the exclusion of those to whom it never has been accessible, is conclusory and bypasses the core question [that the court has been] asked to decide”). Indeed, “the fact that same-sex couples have traditionally been prohibited from marrying is the reason [the action challenging the ban on same sex marriage] was commenced; it cannot be converted into the dispositive reason it cannot succeed.” In re Marriage Cases, supra, 49 Cal. Rptr. 3d 750 (Kline, J., concurring and dissenting).

Thus, when tradition is offered to justify preserving a statutory scheme that has been challenged on equal protection grounds, we must determine whether the reasons underlying that tradition are sufficient to satisfy constitutional requirements. Tradition alone never can provide sufficient cause to discriminate against a protected class, for “[neither] the length of time a majority [of the populace] has held its convictions [nor] the passions with which it defends them can withdraw legislation from [the] [c]ourt’s scrutiny.” Bowers v. Hardwick, supra, 478 U.S. 210 (Blackmun, J., dissenting).

Furthermore, discrimination against one group also cannot be justified merely because the legislature prefers another group. See Metropolitan Life Ins. Co. v. Ward, 470 U.S. 869, 882 n.10, 105 S. Ct. 1676, 84 L. Ed. 2d 751 (1985); see also Hernandez v. Robles, supra, 7 N.Y.3d 394 (Kaye, C. J., dissenting) (“[t]he government cannot legitimately justify discrimination against one group of persons as a mere desire to preference another *257group”). Without sound justification for denying same sex couples the right to many, it therefore may be true, as Justice Scalia has asserted, that “ ‘preserving the traditional institution of marriage’ is just a kinder way of describing the [s]tate’s moral disapproval of same-sex couples.” Lawrence v. Texas, supra, 539 U.S. 601 (Scalia, J., dissenting). Moral disapproval alone, however, is insufficient reason to benefit one group and not another because statutory classifications cannot be “drawn for the purpose of disadvantaging the group burdened by the law.” Romer v. Evans, supra, 517 U.S. 633. Thus, just as “a bare . . . desire to harm a politically unpopular group” is not a legitimate basis for a statutory classification; (internal quotation marks omitted) Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 447; so, too, is moral disapprobation an inadequate reason for discriminating against a disfavored minority. See Lawrence v. Texas, supra, 577. As the United States Supreme Court has stated more than once, “[p]rivate biases may be outside the reach of the law, but the law cannot, directly or indirectly, give them effect.” Palmore v. Sidoti, 466 U.S. 429, 433, 104 S. Ct. 1879, 80 L. Ed. 2d 421 (1984); accord Cleburne v. Cleburne Living Center, Inc., supra, 448; see also Bowers v. Hardwick, supra, 478 U.S. 212 (Blackmun, J., dissenting) (quoting Palmore for same proposition).

The defendants nevertheless maintain, in accordance with the teaching of Moore v. Gamim, 233 Conn. 557, 660 A. 2d 742 (1995), that this court should be “extremely hesitant to choose sides in the policy debate” over same sex marriage by “enshrin[ing] one policy choice as a matter of constitutional law.” Id., 614. The defendants contend that the authority to define marriage rests with the people and their elected representatives, and the courts should not appropriate to themselves the power to change that definition. Although we reaffirm the *258aforementioned principles articulated in Ganim, we do not agree that those principles dictate the outcome of the present case.

In Ganim, this court was required to determine whether the state had an affirmative duty under the state constitution to provide subsistence benefits to the poor. Id., 558-59. In declining to recognize such a duty, we stated, inter alia, that, “[although we do not foreclose the possibility that unenumerated rights may inhere in our state constitution, we are unpersuaded that our constitution obligates the state to provide its citizens with economic subsistence benefits.” Id., 593. We further stated that “[o]ur state and nation’s continuing attempt to grapple with the complex societal problem of poverty is indicative of the intricacies of the problem. On the one hand . . . some legislators believe that the best way to help the indigent is to limit entitlement programs. On the other hand . . . other people contend that such policies are misguided, as they will only increase malnutrition, crime, substance abuse and general human suffering. . . .

“[W]e are extremely hesitant to choose sides in this policy debate and to enshrine one policy choice as a matter of constitutional law. . . . Although we are sympathetic to the plight of indigent persons, the [constitution does not provide judicial remedies for every social and economic ill.” (Citations omitted; internal quotation marks omitted.) Id., 614.

Ganim, however, did not involve an equal protection challenge to the legislative action at issue. In Ganim, rather, we were asked to recognize a new fundamental and unenumerated right under the state constitution, an exercise of authority that quite properly required great restraint lest we create rights without convincing evidence of their existence. See id., 560; cf. Washington v. Glucksberg, supra, 521 U.S. 720 (courts should be *259“reluctant to expand the concept of substantive due process” by “extending constitutional protection to an asserted right or liberty interest” that heretofore has not been so protected [internal quotation marks omitted]). The present case requires that we apply well established equal protection principles to determine whether gay persons are a quasi-suspect class. Because gay persons meet all of the criteria, they are entitled to recognition as a sensitive class and, along with such recognition, the right to heightened judicial protection from laws that discriminate against them.81

That recognition itself, however, does not alter the nature of marriage. It is only because the state has not advanced a sufficiently persuasive justification for denying same sex couples the right to marry that the traditional definition of marriage necessarily must be expanded to include such couples. If the defendants were able to demonstrate sufficient cause to deny same sex couples the right to marry, then we would reject the plaintiffs’ claim and honor the state’s desire to preserve the institution of marriage as a union between a man and a woman. In the absence of such a showing, however, we cannot refuse to follow settled equal protection jurisprudence merely because doing so will *260result in a change in the definition of marriage.82 Contrary to the suggestion of the defendants, therefore, we do not exceed our authority by mandating equal treatment for gay persons; in fact, any other action would be an abdication of our responsibility. See, e.g., Sheff v. O’Neill, 238 Conn. 1, 13, 678 A.2d 1267 (1996) (“it is the role and the duty of the judiciary to determine whether the legislature has fulfilled its affirmative obligations within constitutional principles”).

In sum, the state has failed to establish adequate reason to justify the statutory ban on same sex marriage. Accordingly, under the equal protection provisions of the state constitution, our statutory scheme governing marriage cannot stand insofar as it bars same sex couples from marrying.

VIII

CONCLUSION

We recognize, as the Massachusetts Supreme Judicial Court did in Goodridge v. Dept. of Public Health, supra, 440 Mass. 309, that “our decision marks a change in the history of our marriage law. Many people hold deep-seated religious, moral, and ethical convictions that marriage should be limited to the union of one man and one woman, and that homosexual conduct is immoral. Many hold equally strong religious, moral, and ethical convictions that same-sex couples are entitled to be married, and that homosexual persons should be *261treated no differently than their heterosexual neighbors. Neither view answers the question before [the court]. Our concern is with [our state] [constitution as a charter of governance for every person properly within its reach.” Id., 312.

The drafters of our constitution carefully crafted its provisions in general terms, reflecting fundamental principles, knowing that a lasting constitution was needed. Like the framers of the federal constitution, they also “knew [that] times can blind us to certain truths, and later generations can see that laws once thought necessary and proper in fact serve only to oppress. As the [constitution endures, persons in every generation can invoke its principles in their own search for greater freedom.” Lawrence v. Texas, supra, 539 U.S. 579. Not long ago, this court made the same essential point, explaining that “as we engage over time in the interpretation of our state constitution, we must consider the changing needs and expectations of the citizens of our state.” State v. Webb, 238 Conn. 389, 411, 680 A.2d 147 (1996). This admonition applies no less to the guarantee of equal protection embodied in our constitution than to any other state constitutional provision.

Even though the right to many is not enumerated in our constitution, it long has been deemed a basic civil right. E.g., Loving v. Virginia, supra, 388 U.S. 12 (“[m]arriage is one of the basic civil rights of man” [internal quotation marks omitted]); Skinner v. Oklahoma ex rel. Williamson, 316 U.S. 535, 541, 62 S. Ct. 1110, 86 L. Ed. 1655 (1942) (same). Although we traditionally have viewed that right as limited to a union between a man and a woman, “if we have learned anything from the significant evolution in the prevailing societal views and official policies toward members of minority races and toward women over the past half-century, it is that even the most familiar and generally *262accepted of social practices and traditions often mask unfairness and inequality that frequently is not recognized or appreciated by those not directly harmed by those practices or traditions. It is instructive to recall in this regard that the traditional, well-established legal rules and practices of our not-so-distant past (1) barred interracial marriage, (2) upheld the routine exclusion of women from many occupations and official duties, and (3) considered the relegation of racial minorities to separate and assertedly equivalent public facilities and institutions as constitutionally equal treatment.” In re Marriage Cases, supra, 43 Cal. 4th 853-54.

Like these once prevalent views, our conventional understanding of marriage must yield to a more contemporary appreciation of the rights entitled to constitutional protection. Interpreting our state constitutional provisions in accordance with firmly established equal protection principles leads inevitably to the conclusion that gay persons are entitled to marry the otherwise qualified same sex partner of their choice. To decide otherwise would require us to apply one set of constitutional principles to gay persons and another to all others.83 The guarantee of equal protection under the law, and our obligation to uphold that command, forbids us *263from doing so. In accordance with these state constitutional requirements, same sex couples cannot be denied the freedom to marry.84

The judgment is reversed and the case is remanded with direction to grant the plaintiffs’ motion for summary judgment and application for injunctive relief.

In this opinion NORCOTT, KATZ and HARPER, Js., concurred.

joins, dissenting. The majority concludes that sexual orientation is a quasi-suspect class under our state constitutional provisions guaranteeing equal protection of the laws; Conn. Const., § 20, art. I, §§ 1 and 20;1 and, based on that conclusion, the majority further concludes that our statute confining marriage to opposite sex couples violates the rights of same sex couples under those constitutional provisions because the statute does not survive the heightened scrutiny required by that constitutional classification.2 In my view, the majority’s decision to grant quasi-suspect class status to sexual orientation is contrary to a sound and prudent interpretation of constitutional standards regarding equal pro*264tection of the laws because it unduly minimizes the unique and extraordinary political power of gay persons3 in this state, both generally speaking, and particularly in regard to the question of whether gay marriage should be recognized in this state.

I conclude that sexual orientation does not constitute either a suspect or a quasi-suspect class under our state constitution. I also reject the other claims raised under our state constitution, by the plaintiffs, eight same sex couples,4 namely, that our definition of marriage as limited to the union of a man and a woman creates an impermissible gender classification in violation of the plaintiffs’ right to equal protection and deprives the plaintiffs of their fundamental constitutional right to marry, and conclude, accordingly, that our civil union and marriage statutes survive the constitutionally minimum standard of rational basis review. I therefore dissent and would affirm the trial court’s judgment.5

I

SEXUAL ORIENTATION IS NOT A QUASI-SUSPECT CLASS UNDER ARTICLE FIRST, §§ 1 AND 20, OF THE CONSTITUTION OF CONNECTICUT

A

Background

I begin by noting my agreement with much of what the majority says in its eloquently written opinion. First, *265I agree with the majority that, contrary to the conclusion of the trial court, the plaintiffs have stated a cognizable constitutional claim.6 I agree that there is enough of a difference between the new institution of civil union and the ancient institution of marriage to permit a constitutional challenge on equal protection grounds. There is no doubt that the institution of marriage carries with it a unique and important history and tradition in our society and state. Although the civil union statute provides all of the benefits and obligations of marriage, because it is so new, we cannot know with any reasonable degree of certitude whether it is now or soon will be viewed by the citizens of our state as the social equivalent of marriage. In my view, this uncertainty is enough to trigger equal protection analysis.

The majority concludes that the civil union statute has relegated the plaintiffs to an inferior status and affords them second class citizenship, that civil unions are perceived to be inferior to marriage, and that, “[d] espite the truly laudable effort of the legislature in equalizing the legal rights afforded same sex and opposite sex couples, there is no doubt that civil unions enjoy a lesser status in our society than marriage.” Unlike the majority, I do have such a doubt, and I do not think that the plaintiffs have established that proposition as beyond doubt.

First, the majority’s determination that civil union status is a second class or inferior status is not, as the majority presents it, an established fact that serves as the starting point of the debate, but an issue of fact that has not yet been resolved in the present case. In fact, in the trial court on the cross motions for summary *266judgment in the present case, the plaintiffs presented a statement of undisputed facts in support of their motion. In that statement, one of the plaintiffs, Gloria Searson, alleged that “[b]eing ‘placed into a separate category, such as civil union, brands [her] relationship [with her civil union spouse, Damaris Navarro] as second class and makes [her] feel substandard.’ ” In response, the defendants, certain state and local officials, stated that, solely for purposes of the cross motions, they did not dispute the allegations of that particular paragraph, “except that to the extent that the statement ‘[b]eing placed into a separate category, such as civil union, brands [the couple’s] relationship as second class’ is asserted as a statement of fact, as opposed to a statement of [Searson] and [Navarro’s] opinion, that fact is denied.” Thus, the procedural posture of this appeal has not yet allowed the fact finder to make the factual determination of whether the civil union statute relegates same sex couples to an inferior status. Thus, the majority has drawn this conclusion without questioning whether the underlying factual assumption is true, without having allowed the parties to present evidence to the trial court in support of their positions, and without having allowed the trial court to make the disputed factual finding.

This is particularly significant given the fact that the question of what is perceived or considered to be an inferior status in a given society may not be readily apparent when the subject is a brand new institution, such as civil union. One only needs to open the New York Times on a given Sunday and see civil unions announced on the same page and in the same style as marriages. It is questionable, at least, that a couple that views their civil union as a sign of second class citizenship would choose to publicize it in the society column of the newspaper, particularly one with a circu*267lation as large as the New York Times.7 And, of course, the factual question of whether the statute relegates same sex couples to a perceived second class status would be readily subject to such proof by way, for example, of public opinion polls on the views of the people of this state.8 Thus, the majority has ignored this essentially factual dispute and made its own factual assertion without evidence.

In this connection, I also note that this court is constitutionally prohibited from finding facts. Weil v. Miller, 185 Conn. 495, 502, 441 A.2d 142 (1981) (“[t]his court cannot find facts; that function is, according to our constitution, our statute, and our cases, exclusively assigned to the trial courts”); see also Conn. Const., amend. XX, § 1 (“The judicial power of the state shall be vested in a supreme court, an appellate court, a superior court, and such lower courts as the general assembly shall, from time to time, ordain and establish. The powers and jurisdiction of these courts shall be defined by law.”). Thus, to the extent that the perceived status of civil unions in this state is factual in nature, the majority has, by making its findings regarding that status, exceeded this court’s power. This further undermines the majority’s assertion of second class status attached to civil unions at this point in our history.

*268Moreover, we have had civil unions in our state only since October 1, 2005, when the statutory scheme became effective. See Public Acts 2005, No. 05-10, § 1. Indeed, we are one of only two states in the nation that have legislatively enacted a civil union statutory scheme that was not mandated by its Supreme Court.9 In addition, both the Vermont and the New Jersey Supreme Courts have held, under their state constitutions, that the legislature must enact, in effect, civil union (but not same sex marriage) statutes to remedy the unconstitutionality of their respective marriage statutes. See Baker v. State, 170 Vt. 194, 744 A.2d 864 (1999); Lewis v. Harris, 188 N.J. 415, 908 A.2d 196 (2006).10 Both Vermont and New Jersey already have done so—Vermont several years before the enactment of our civil *269union statute, and New Jersey some time thereafter. Undoubtedly, at this point in time, there have been thousands of civil union ceremonies performed in Connecticut, Vermont and New Jersey, with the result that there are now thousands of families headed by same sex couples joined in civil union, both with and without children.

I acknowledge that, because of its name, civil union is a different status from marriage. In this connection, I also note my agreement with Justice Zarella’s observation in part I of his dissenting opinion regarding the nature of that different status, namely, that the institution of civil union is a creature of statute, while marriage is a fundamental civil right protected by the constitution. At this point in our state’s history, however, and without any appropriate fact-finding on the issue, I am unable to say that it is widely considered to be less than or inferior to marriage, or that it does not bring with it the same social recognition as marriage. It is simply too early to know this with any reasonable measure of certitude.11

I agree with the New Jersey Supreme Court that “same-sex couples [are] free to call their relationships by the name they choose . . . .” Lewis v. Harris, supra, 188 N.J. 461. Indeed, parties to a civil union are free to—and do, in my experience—refer to their partner as “my spouse,” or any other appellation that is derived from the vocabulary of marriage. For that matter, I know of no barrier, legal or otherwise, to such parties referring to themselves as “married,” if they choose to do so. After all, in the eyes of the law, they have all of the rights and obligations “as are granted to spouses in a marriage . . . .” General Statutes § 46b-38nn. Moreover, General Statutes § 46b-38oo specifi*270cally includes civil unions in any use in the General Statutes of the term “ ‘spouse’ ... or any other term that denotes the spousal relationship,” and also specifically provides that, with certain exceptions, whenever “the term ‘marriage’ is used or defined, a civil union shall be included in such use or definition.” In fact, as I have noted, the New York Times treats them the same as marriages for purposes of public announcement in the Sunday edition. In short, the state of social flux in this entire realm is simply too new and too untested for four members of this court to declare as an established social fact that civil unions are of lesser status than marriage in our state. In my view, that has not been established at this stage of our history. Judge Learned Hand has wisely reminded us as judges never to be too sure that we are always right.12

Thus, our experience with civil unions is simply too new and the views of the people of our state about it as a social institution are too much in flux to say with any certitude that the marriage statute must be struck down in order to vindicate the plaintiffs’ constitutional rights. “[J]udicia! authority ... is certainly not the only repository of wisdom. ‘When a democracy is in moral flux, courts may not have the best or the final answers. Judicial answers may be wrong. They may be counterproductive even if they are right. Courts do best by proceeding in a way that is catalytic rather than preclusive and that is closely attuned to the fact that courts are participants in the system of democratic deliberation.’ ” Baker v. State, supra, 170 Vt. 228, quoting C. Sunstein, “Foreword: Leaving Things Undecided,” 110 Harv. L. Rev. 4, 101 (1996). The majority has disregarded this wise counsel.

*271Consider and compare, for example, the change in social attitudes toward unmarried opposite sex couples living together. It was not long ago that there was a widespread attitude of moral disapproval, and stronger than that on the part of many persons, toward such couples. Yet, it is fair to say that, even independent of or without any positive statutory reinforcement or judicial decisions, now such living arrangements are widely accepted as an ordinary and common part of our social landscape, without social stigma of any kind. It is certainly possible that, but for the majority’s decision in this case, social attitudes toward civil unions would have proven not to have the negative connotations that the majority suggests, either independent of or because such unions have the positive reinforcement of legal approval.13 The point is that at this time it is *272simply impossible to say what the current prevailing view is, and what it would have turned out to be in the future.

I also agree, however, with the majority that the same factors that trigger strict scrutiny under our equal protection clauses trigger intermediate scrutiny, and I agree generally with the majority’s four factor test applicable to trigger those tiers of judicial scrutiny, including the notion that there is no formula for applying the four factor test. Furthermore, applying those four factors to the facts of this case, I agree that gay persons have suffered a deplorable history of invidious discrimination, that their sexual orientation is a distinguishing characteristic that defines them as a discrete group, and that one’s sexual orientation has no relation to a person’s ability to contribute to society.

My fundamental disagreement with the majority focuses, however, on the relevance and application of the fourth factor, namely, the political power of gay persons in this state. The majority discounts this factor as the least important of the factors in the equal protection calculus, and applies it in a way that, in my view, renders it all but irrelevant. To the contrary, I view this factor as equal to the other factors, and think that, under our state constitution, it should be given its due weight.

In this connection, I emphasize the limitations on the scope of my analysis. First, we decide this case under the equal protection clauses of our state constitution. When we do so, we ordinarily look to those equal protection principles articulated by the United States Supreme Court; but we do so as a matter of jurisprudential choice, not as a matter of state constitutional mandate. Second, as I explain in part II of this opinion, in my view those classes specified in article first, § 20; see footnote 1 of this dissenting opinion; and only those classes, are entitled to strict scrutiny under our consti*273tution. Thus, the four factor test employed by the majority, and with which I agree generally, applies only to determine whether, as in the present case, an unspecified class is entitled to heightened scrutiny.14

Furthermore, in applying the political power factor to the facts of this case, I conclude that, because one of the fundamental purposes of heightened review scrutiny is, as I explain in part IB of this opinion, the need for judicial intervention into the process of legislative classification to protect discrete and insular minorities who cannot effectively use the political process to protect themselves, the political power of gay persons in this state at this time regarding the right of gay marriage is so strong that the political power factor outweighs the other factors. I turn now, therefore, to the political power factor in the suspect class status analysis.

B

The History and Significance of the Political Power Factor

Some history is necessary in order to understand the significance of the political power factor in equal *274protection jurisprudence. One of the principal purposes of the four factor test for heightened scrutiny, based on its history, is to provide for the extraordinary remedy of judicial intervention into legislative classification in those instances in which, because of the status of the group affected by the classification, the group has no likely effective means of redressing any discrimination effected by means of the classification through the normal political process.

The starting point for evaluating the constitutionality of a legislative classification under equal protection principles has long been the rational basis test, which applies to economic and social regulation. See Metropolitan Casualty Ins. Co. v. Brownell, 294 U.S. 580, 583, 55 S. Ct. 538, 79 L. Ed. 1070 (1935). This test is rooted in the notion that the principal function of the legislature is to draw lines—in effect, to make classifications, so that it is not necessary for all legislation to apply to everyone in the first instance—and that, when the legislature does so, “the [c]onstitution presumes that even improvident decisions will eventually be rectified by the democratic process.” Cleburne v. Cleburne Living Center, Inc., 473 U.S. 432, 440, 105 S. Ct. 3249, 87 L. Ed. 2d 313 (1985). As the United States Supreme Court has recognized: “Classification is the essence of all legislation, and only those classifications which are invidious, arbitrary, or irrational offend the [e]qual [protection [c]lause of the [c]onstitution.” Clements v. Fashing, 457 U.S. 957, 967, 102 S. Ct. 2836, 73 L. Ed. 2d 508 (1982). Thus, the rational basis test is based on judicial respect for the separation of powers.

In 1938, in United States v. Carolene Products Co., 304 U.S. 144, 152, 58 S. Ct. 778, 82 L. Ed. 1234 (1938), *275the United States Supreme Court upheld a legislative classification created by the federal Filled Milk Act as having a rational basis. In what has now been recognized as its seminal footnote 4; id., 152-53 n.4; however, the court for the first time suggested the rationale for a more searching level of judicial inquiry for certain cases. One category of such cases was those in which “those political processes which can ordinarily be expected to bring about repeal of undesirable legislation” were, by the nature of the legislation itself, restrictive of those processes, such as legislation restricting the right to vote, restraining the dissemination of information and interfering with political organizations. Id. The court then broadened its suggestion of the possibility of a more searching level of judicial inquiry to another category of cases. The court stated: “Nor need we enquire whether similar considerations enter into the review of statutes directed at particular religious ... or national ... or racial minorities . . . [or] whether prejudice against discrete and insular minorities may be a special condition, which tends seriously to curtail the operation of those political processes ordinarily to be relied upon to protect minorities, and which may call for a correspondingly more searching judicial inquiry.” (Citations omitted; emphasis added.) Id., 153 n.4.

Footnote 4 has had such great impact on constitutional law that it is often referred to as the “most famous” and “most celebrated” footnote in the Supreme Court’s history. See, e.g., D. Hutchinson, “Symposium, Discrimination and Inequality: Emerging Issues, ‘Gay Rights’ for ‘Gay Whites’?: Race, Sexual Identity, and Equal Protection Discourse,” 85 Cornell L. Rev. 1358, 1379 n.107 (2000) (“ ‘most famous footnote’ ”); P. Linzer, “The Carolene Products Footnote and the Preferred Position of Individual Rights: Louis Lusky and John Hart Ely vs. Harlan Fiske Stone,” 12 Const. Com*276mentary 277 (1995) (same); A. Amar, “The Bill of Rights and the Fourteenth Amendment,” 101 Yale L.J. 1193, 1195 (1992) (same); S. Delchin, comment, “United States v. Virginia and Our Evolving ‘Constitution’: Playing Peek-a-boo with the Standard of Scrutiny for Sex-Based Classifications,” 47 Case W. Res. L. Rev. 1121, 1154 n.206 (1997) (“ ‘most celebrated footnote’ ”); L. Wardle, “A Critical Analysis of Constitutional Claims for Same-Sex Marriage,” 1996 BYU L. Rev. 1, 92 (same); L. Powell, “Carolene Products Revisited,” 82 Colum. L. Rev. 1087 (1982) (first description as “most celebrated footnote”).

Justice Powell, delivering the Harlan Fiske Stone Lecture at Columbia University in New York, observed that Carolene Products Co. was an “unremarkable” case. L. Powell, supra, 82 Colum. L. Rev. 1087. Justice Powell explained that footnote 4, which, ironically, was not only relegated to a footnote, but also was dicta, is the sole reason for the continuing fascination with the case. Indeed, Justice Powell noted that the footnote “now is recognized as a primary source of strict scrutiny judicial review,” which “many scholars think . . . actually commenced a new era in constitutional law.” (Internal quotation marks omitted.) Id., 1088.

Justice Powell’s explanation of the theory underlying footnote 4 is significant. “The fundamental character of our government is democratic. Our constitution assumes that majorities should rule and that the government should be able to govern. Therefore, for the most part, Congress and the state legislatures should be allowed to do as they choose. But there are certain groups that cannot participate effectively in the political process. And the political process therefore cannot be trusted to protect these groups in the way it protects most of us. Consistent with these premises, the theory continues, the Supreme Court has two special missions in our scheme of government: First, to clear away *277impediments to participation, and ensure that all groups can engage equally in the political process; and [second, to review with heightened scrutiny legislation inimical to discrete and insular minorities who are unable to protect themselves in the legislative process.” (Emphasis added.) Id., 1088-89.

Thus, a principal purpose underlying heightened scrutiny judicial intervention into the realm of legislative judgment—into its essential process of classification—is directly related to the political power factor. Heightened scrutiny analysis is designed as an extraordinary form of judicial intervention on behalf of those insular minority classes who presumably are unlikely to be able to rectify burdensome or exclusive legislation through the political process.

The United States Supreme Court’s equal protection case law reflects the importance of footnote 4 of Carolene Products Co., and the close tie between heightened scrutiny analysis and the relative political power of the group being considered for protected class status. See, e.g., San Antonio Independent School District v. Rodriguez, 411 U.S. 1, 105, 93 S. Ct. 1278, 36 L. Ed. 2d 16 (1973) (Marshall, J., dissenting) (“The reasons why such classifications [of race, nationality and alienage] call for close judicial scrutiny are manifold. Certain racial and ethnic groups have frequently been recognized as ‘discrete and insular minorities’ who are relatively powerless to protect their interests in the political process. See Graham v. Richardson, [403 U.S. 365, 372, 91 S. Ct. 1848, 29 L. Ed. 2d 534 (1971)]; cf. United States v. Carolene Products Co., [supra, 304 U.S. 152-53] n.4.”); Massachusetts Board of Retirement v. Murgia, 427 U.S. 307, 313, 96 S. Ct. 2562, 49 L. Ed. 2d 520 (1976) (“[b]ut even old age does not define a ‘discrete and insular’ group, United States v. Carolene Products Co., [supra, 152-53 n.4], in need of ‘extraordinary protection from the majoritarian political process’ ”); Plyler v. Doe, 457 *278U.S. 202, 217 n.14, 102 S. Ct. 2382, 72 L. Ed. 2d 786 (1982) (“[C]ertain groups . . . have historically been ‘relegated to such a position of political powerlessness as to command extraordinary protection from the majoritarian political process.’ . . . [S]ee United States v. Carolene Products Co., [supra, 152-53 n.4].” [Citations omitted.]).

Although the United States Supreme Court has not always cited the Carolene Products Co. footnote in its formulation of the test for heightened scrutiny, it has applied the political power factor in determining whether legislation affecting a particular class is to be made subject to that scrutiny, and its reasoning and language clearly have echoed the purpose of that factor as explained by Justice Powell. In Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440, the court, in determining that the mentally retarded were not a quasi-suspect class, used language and reasoning that established clearly that the political power factor is integral to the determination of whether a class is entitled to suspect or quasi-suspect class status, and, therefore, whether legislation affecting that class should be subjected to heightened or merely rational basis scrutiny. First, in contrasting the rational basis test with the strict scrutiny test, the court noted that statutes that classify on the basis of race, alienage or national origin “are deemed to reflect prejudice and antipathy—a view that those in the burdened class are not as worthy or deserving as others. For these reasons and because such discrimination is unlikely to be soon rectified by legislative means, these laws are subjected to strict scrutiny . . . .” (Emphasis added.) Id. In summarizing the rational basis test, the court referred to the fact that, where the group involved has characteristics relevant to state interests, “courts have been very reluctant, as they should be in our federal system and with our respect for the separation of powers, to closely scrutinize legis*279lative choices . . . .” (Emphasis added.) Id., 441. The court then turned to its explanation of why it rejected quasi-suspect classification for the mentally retarded, stating: “[T]he distinctive legislative response, both national and state, to the plight of those who are mentally retarded demonstrates not only that they have unique problems, but also that lawmakers have been addressing their difficulties in a manner that belies a continuing antipathy or prejudice and a corresponding need for more intrusive oversight by the judiciary.” (Emphasis added.) Id., 443. After cataloguing the federal and state legislation demonstrating those legislative responses, the court stated: “[T]he legislative response, which could hardly have occurred and survived without public support, negates any claim that the mentally retarded are politically powerless in the sense that they have no ability to attract the attention of the lawmakers.” (Emphasis added.) Id., 445. One cannot reasonably read these passages without hearing and seeing the important relevance of the political power factor to the three tier analysis; it is integral to the determination of whether a particular class should be elevated to protected status.

Contrary to the majority, therefore, I conclude that the political power of the group that seeks heightened scrutiny is a highly relevant consideration in the formulation and application of the four part test to determine whether the legislation at issue is to be subject to that degree of scrutiny. I would, therefore, as a matter of our own state constitutional law, retain the political power factor as an equal consideration in the equal protection calculus because it constitutes one of the fundamental purposes of the entire heightened scrutiny analysis. Finally, as I explain in part I C of this opinion, I agree with the majority’s formulation of how to define that factor and, in applying it to this case, I conclude that, under that definition, the plaintiffs are not entitled *280to heightened scrutiny. I turn now to the application of that factor in the present case.

C

Application of the Political Power Factor to the Right to Gay Marriage in Connecticut

I agree with the majority in its formulation of the political power factor: “[A] group satisfies the political powerlessness factor if it demonstrates that, because of the pervasive and sustained nature of the discrimination that its members have suffered, there is a risk that that discrimination will not be rectified, sooner rather than later, merely by resort to the political process. See Cleburne v. Cleburne Living Center, Inc., supra, 473 U.S. 440.” The majority has “little difficulty in concluding that gay persons are entitled to heightened constitutional protection despite some recent political progress.” Unlike the majority, however, I come to the opposite conclusion: it is very clear to me that the discrimination to which the plaintiffs have been subjected in the past is no longer a factor preventing them from availing themselves of the political process to secure their rights. The most compelling illustration of that development is that the differential treatment of which the plaintiffs complain and seek to remedy by this case—the denial of the right to marry—would be rectified by the political process very soon. It is the unfortunate consequence of the majority opinion that it has short-circuited the democratic process.

I first emphasize that this case must be viewed realistically. It is not a case about trying to remedy the history of discrimination against gay persons in this state in general. As I explain in part I C 1 of this opinion, our current legislation effectively has done that, insofar as any law—legislative or judicial—can do so. Just as the New Jersey Supreme Court recognized in its gay marriage case: “The legal battle in this case has been waged *281over one overarching issue—the right to marry.” Lewis v. Harris, supra, 188 N.J. 433. Indeed, in light of the extensive gay rights legislation that we have in this state, the principal form of discrimination of which the plaintiffs complain, and what they seek to remedy in this case, is what they call “marriage discrimination.” The plaintiffs state in their brief: “The journey of Connecticut lawmakers in confronting and eliminating aspects of discrimination against lesbian and gay people has been remarkable, but the legislature also has failed with respect to ending marriage discrimination. . . . While the legislature has addressed different manifestations of discrimination against gay people, it has consistently set aside any issue of marriage discrimination.” (Citations omitted; internal quotation marks omitted.)

I also emphasize that this factor should be applied in the context of Connecticut today. It is today’s Connecticut constitution that we are interpreting and applying; it is today’s Connecticut marriage and civil union statutes that are under consideration; the plaintiffs are residents of Connecticut; and it is the conditions of their lives in this state now and for the foreseeable future that should inform the question of whether they have been denied the equal protection of the laws under the Connecticut constitution by being denied the right to marry. With these emphases in mind, I conclude, for two fundamental reasons, that the political power factor compels the conclusion that the plaintiffs are not denied the equal protection of the laws by our civil union and marriage statutes.

1

The Legislative Trend in Connecticut

The first reason for my conclusion is that the trajectory of Connecticut legislation over the past decades clearly indicates the extraordinarily great and growing political power of the gay community generally and *282more specifically with respect to the right to marry. That extraordinary trajectory consistently has been in the direction of greater protection and recognition of the rights of gay persons, of their rightful claims to be free from intimidation and discrimination, and, finally and most important, of their claim to the right to marry.

Since 1971, when our Penal Code came into effect, noncommercial, consensual sexual relations, whether homosexual or heterosexual, in private between adults has not been the business of the criminal law. Commission to Revise the Criminal Statutes, Penal Code Comments, Conn. Gen. Stat. Ann. (West 2007) § 53a-65, comment, p. 277. Thus, the preexisting criminal prohibition against sodomy, for example, which targeted male homosexual conduct even when engaged in privately, was eliminated from our criminal laws. In addition, General Statutes §§ 53a-181j through 53a-181£, which have been in effect since 2000, make intimidation based on sexual orientation criminal.15 Furthermore, since *2831991, General Statutes §§ 46a-81a through 46a-8 In have prohibited discrimination by both private and state actors based on sexual orientation in a broad range of human endeavors in this state, have required state agencies to take positive steps, including training and education, to remedy any such discrimination and ensure that it does not occur in the future, and have placed these prohibitions and positive obligations within the enforcement authority of the state commission on human rights and opportunities. More specifically, these statutes govern: professional or occupational licensing; General Statutes § 46a-81b; employment; General Statutes § 46a-81c; public accommodations; General Statutes § 46a-81d; housing; General Statutes § 46a-81e; credit practices; General Statutes § 46a-81f; employment practices in state agencies; General Statutes § 46a-81h; services performed by state agencies; General Statutes § 46a-81i; employment referral and placement services by state agencies; General Statutes § 46a-81j; state licensing; General Statutes § 46a-81k; state educational, counseling and vocational guidance programs; General Statutes § 46a-81m; allocation of state benefits; General Statutes § 46a-81n; and mandatory annual reporting to the governor by all state agencies of their efforts to effectuate their obligations under these sections. General Statutes § 46a-81o. Moreover, since 1991, General Statutes § 4a-60ahas required all state contracts to contain a clause that the contracting party will not discriminate or permit discrimination on the grounds of sexual orientation.16

*285Then, in 2005, our state became the first state in the nation to establish by legislation the institution of civil union between persons of the same sex. We are one of only two states in the nation to establish civil unions purely by the political process, without being required to do so by a decision of the state’s highest court.17 Chapter 815f of our General Statutes, comprising General Statutes §§ 46b-38aa through 46b-38pp, entitled “Civil Union,” is our comprehensive civil union statutory scheme. Although retaining the traditional definition of marriage as the union of one man and one woman; General Statutes § 46b-38nn; the statute provides that persons of the same sex may enter into a civil union. General Statutes § 46b-38bb (2). The core of that statutory scheme is § 46b-38nn, entitled “Equality of benefits, protections and responsibilities,” which provides as follows: “Parties to a civil union shall have all the same benefits, protections and responsibilities under law, whether derived from the general statutes, administrative regulations or court rules, policy, common law or any other source of civil law, as are granted to spouses in a marriage, which is defined as the union of one man and one woman.” Thus, there is no doubt that, for all purposes “under law”; General Statutes § 46b-38nn; parties to a civil union are the same as parties to a marriage. This means that, in the eyes of the law, the two legal relationships—marriage and civil union—are the same. There is no concrete, substantive or procedural legal right, privilege, immunity or obligation—no benefit, protection or responsibility, in the language of the statute—that differs between the two. The statute goes further. Section 46b-38oo provides in relevant part: “Wherever in the general statutes the *286terms ‘spouse’, ‘family’, ‘immediate family’, ‘dependent’, ‘next of kin’ or any other term that denotes the spousal relationship are used or defined, a party to a civil union shall be included in such use or definition, and wherever in the general statutes . . . the term ‘marriage’ is used or defined, a civil union shall be included in such use or definition.” Such a statute could not have been enacted without the very heavy political power of the gay community in 2005, just three years ago. Indeed, the civil union bill passed the House of Representatives by a vote of eighty-five to sixty-three, and passed the Senate by a vote of twenty-six to eight, with bipartisan support in both chambers. See 48 H.R. Proc., Pt. 7, 2005 Sess., p. 2181; 48 S. Proc., Pt. 5, 2005 Sess., p. 1345.

Finally, on January 31, 2007, less than two years after the enactment of the civil union statute, the joint committee on the judiciary raised on its own Raised House Bill No. 7395 (2007), entitled “An Act Concerning Marriage Equality.” Raised House Bill No. 7395 defined marriage as “the legal union of two persons,” and specifically provided that a person is eligible to marry if such person is “[o]f the same or opposite sex as the other party to the marriage It specifically would have eliminated the previous statutory declarations “that the current public policy of the state of Connecticut is now limited to a marriage between a man and a woman”; General Statutes § 45a-727a (4); and that “marriage . . . is defined as the union of one man and one woman.” General Statutes § 46b-38nn. Raised House Bill 7395 would do everything that the majority does by constitutional adjudication in this lawsuit.

Simultaneously with the introduction of this bill in the judiciary committee, the cochairs of the committee held a news briefing in the state capitol in support of the bill. The public access television network, CT-N Connecticut Network, video-recorded that news briefing. See Videotape: Capitol News Briefing with the *287Chairs of the Judiciary Committee on the Same Sex Marriage Bill (CT-N Connecticut Network January 31, 2007) (copy contained in the file of this case with the Supreme Court Clerk’s Office). That news briefing is significant in showing the extraordinary political support for the proposed legislation. In addition to the cochairs of the committee, in attendance and supporting the bill were numerous other senators and representatives, as well as a deputy comptroller of the state. In addition, other legislators could not attend but asked that their support be publicly acknowledged, and it was.

Senator Andrew J. McDonald, the Senate cochair of the committee, noted that, since the enactment of the civil union legislation, there had been no public outcry regarding, and nothing but public acceptance of, civil unions. Id. Some of the remarks at that news briefing by Representative Michael P. Lawlor, the House cochair of the committee, indicate his view that the chances of the gay marriage bill passing were very good. Id. He noted the significant shift in public opinion over the past eleven years, when apparently the issue of gay marriage had begun to be discussed.18 Id. Representative Lawlor stated that he had “never seen an issue where public opinion shifted so quickly as this one,” and he referred to public opinion polls indicating that the evolution of the public acceptance of gay marriage has been extraordinary over the past few years. Id. He put forth his view that civil union is marriage by another name, and that those couples joined in such a union “are married.” Id. He stated that he believed that legislative enactment of gay marriage was “inevitable,” and that even legislators and other public officials who opposed *288gay marriage were of the same opinion.19 Id. He remarked that he no longer sees public officials speaking out against gay marriage. Id. In his view, the enactment of the civil union legislation had been the “big stuff.” Id. Representative Lawlor said that “times have changed—this law will change with the times.” Id. Referring specifically to Governor M. Jodi Rell’s indication that she would veto the bill if it passed, he stated that governors change their minds as well as legislators, and that there is a political tide in the direction of gay marriage. Id.

The public legislative hearings on the bill further show the extraordinary political support for gay marriage through legislation. Speaking in support of the bill were State Comptroller Nancy Wyman; Conn. Joint Standing Committee Hearings, Judiciary Committee, Pt. 17, 2007 Sess., p. 5312; State Treasurer Denise L. Nappier; id., p. 5339; Secretary of the State Susan Bysiewicz; id., p. 5395; Senator Edith Prague; id., p. 4771; Teresa C. Younger, executive director of the Permanent Commission on the Status of Women; id., p. 5258; and the mayors of three of our largest cities, namely, Dannel P. Malloy, the mayor of Stamford; id., p. 5343; Eddie A. Perez, the mayor of Hartford; id., p. 5331; and John DeStefano, Jr., the mayor of New Haven. Id., p. 5390. In addition to these state and municipal public officials, the bill was supported by the Hartford Court of Common Council; id., p. 5331; and by two major labor unions in the state, namely, the Connecticut State United Auto Workers CAP Council; id., p. 5326; and the Connecticut AFL-CIO. Id., p. 5333. In addition, support was registered from the American Civil Liberties Union of Con*289necticut; id., p. 5314; the Connecticut Chapter of the National Association of Social Workers; id., p. 5351; the National Council of Jewish Women; id., p. 5309; the Connecticut Chapter of the American Academy of Pediatrics; id., p. 5310; and the Connecticut Women’s Education and Legal Fund. Id., p. 5328. Furthermore, nine religious leaders of both Christian and Jewish denominations registered their support of the bill. Not one state or local official—elected or appointed—and not one labor or professional organization opposed the bill.20 The judiciary committee reported the bill out favorably by a bipartisan vote of twenty-seven to fifteen. See Raised House Bill No. 7395, Judiciary Committee Vote Tally Sheet, April 12, 2007.

Subsequently, the cochairs of the judiciary committee decided not to ask for a floor vote on the bill. Their reasons for doing so, however, are extremely significant, because they underscore the extraordinary growing political support for the bill. In a press release announcing their decision, Senator McDonald and Representative Lawlor stated that “several vote counts of legislators show the results to be encouragingly close,” but that “many lawmakers have requested more time before voting for the bill.” Press Release, Judiciary Chairman Will Not Seek Vote on Marriage Equality, but Are Encouraged by Increasing Public Support (May 11, 2007) (copy contained in the file of this case with the Supreme Court Clerk’s Office). Senator McDonald *290stated that “[t]he number of legislators backing this proposal has more than doubled in just the past two years since the bill was last introduced .... Support toward gay marriage equality is growing. We achieved an incredible benchmark this year by passing the bill out of committee—a step that many believed we would not be able to accomplish.” Id. Representative Lawlor stated: “I thought passing the bill out of committee was a possibility. However, following the public hearing, at least five more committee members changed their minds and decided to vote for the bill . . . .’’Id. He stated that numerous colleagues on both sides of the aisle had approached him privately and said that while they were personally in favor of same sex marriage, they were hesitant at that time to announce publicly their support for the bill. In due time, they told him, they will be comfortable voting for it as public opinion continues to shift in that direction. Id. Representative Lawlor stated: “A significant number of legislators have told us that they are currently in favor of same sex marriage personally, but feel that the state will be ready for it in another year or two. With time, these are the people that will create a majority .... This doesn’t surprise me because we’ve been seeing the same trends happening in the general public, too, with more people gradually coming out in support for same-sex marriage. When [not if] it passes, I hope it is a strong bipartisan vote as was the case with civil unions in 2005.” (Emphasis added.) Id.

The press release reported that a poll conducted in April, 2007, for the Hartford Courant by the Center for Survey Research and Analysis at the University of Connecticut showed that 49 percent of Connecticut residents favor same sex marriage, while 46 percent oppose it. Id. Senator McDonald stated that “[l]ike most people in Connecticut, I think that the governor has demonstrated an increased willingness to be open-*291minded and she understands that peoples’ views are changing rapidly on the topic . . . .” Id. Noting the public testimony in favor of the bill by the state comptroller, treasurer and secretary of the state, as well as the three mayors, Senator McDonald stated: “An increasing number of elected officials will support marriage equality as time progresses. The trend is undoubtedly moving in that direction.” Id.

Other legislators were quoted in the press release as being in favor of the bill, acknowledging the rapid shift in public opinion, and expressing their belief that the bill would soon pass. Senator Mary Ann Handley stated: “I’ve long believed that gay and lesbian couples should have the same rights to marriage that heterosexual couples have and should not be treated differently by the government. I’m very encouraged that we have come closer this year to achieving this .... Full equality is definitely in reach.” (Emphasis added.) Id. Representative Beth Bye said that the great majority of feedback has been positive, stating: “The support shown has been immense . . . I’ve received numerous e-mails and phone calls of encouragement from my constituents, and even words of support from other legislators who actually oppose the legislation. It’s clear to me that opinions are moving in this direction.” (Emphasis added.) Id. Representative Toni Walker said that throughout her time in the legislature, she has seen a growing number of legislators switch their positions into the direction of equal marriage rights for same sex couples. Id. Representative Walker stated: “I’ve seen it for myself. Increasingly, as I sit down and talk with my colleagues, Fve found that they are changing their views toward the direction of marriage equality.” (Emphasis added.) Id.

It is to blink at political reality to ignore or to dismiss, as the majority does, this extraordinary and unprecedented public record. No other court that considers the *292political power factor as relevant has been presented with this unique demonstration of political power. Moreover, I note that it is influential elected politicians—not appointed judges—who think that gay marriage through legislation is inevitable in Connecticut; who have discussed the issue with their elected colleagues and their constituents; who have read the public opinion polls, and have concluded that gay marriage will be enacted legislatively in Connecticut sooner rather than later; and who determined, in April, 2007, more than one year ago, that within one or two years from then a strong, bipartisan majority likely would pass a gay marriage bill, and that such a majority, as well as the growing public support for gay marriage in the state, might well persuade the governor to sign the bill. The majority dismisses this extraordinary public record of political support for gay marriage through legislation, and substitutes its uninformed view of the political landscape for that of those who shape it and work in it day after day.21

As a result, the majority joins only two other states, namely, California and Massachusetts, in mandating same sex marriage as a matter of state constitutional law. See In re Marriage Cases, 43 Cal. 4th 757, 785, 183 P.3d 384, 76 Cal. Rptr. 3d 683 (2008); Goodridge v. Dept. of Public Health, 440 Mass. 309, 344, 798 N.E.2d 941 (2003).22 The other five state courts of final appeal *293that have considered the issue have concluded to the contrary. See Conaway v. Deane, 401 Md. 219, 312, 932 A.2d 571 (2007); Lewis v. Harris, supra, 188 N.J. 441; Hernandez v. Robles, 7 N.Y.3d 338, 362-63, 855 N.E.2d 1, 821 N.Y.S.2d 770 (2006); Baker v. State, supra, 170 Vt. 224-25; Andersen v. King County, 158 Wash. 2d 1, 53, 138 P.3d 963 (2006). California is the only one of these states that has what could be called a civil union statute, but in the California constitutional jurisprudence there is no political power factor analysis. See In re Marriage Cases, supra, 843 (“[O]ur cases have not identified a group’s current political powerlessness as a necessary prerequisite for treatment as a suspect class. . . . Instead, our decisions make clear that the most important factors in deciding whether a characteristic should be considered a constitutionally suspect basis for classification are whether the class of persons who exhibit a certain characteristic historically has been subjected to invidious and prejudicial treatment, and whether society now recognizes that the characteristic in question generally bears no relationship to the individual’s ability to perform or contribute to society.” [Emphasis in original.]). Although the Massachusetts Supreme Judicial Court stated, in a subsequent proceeding, that a civil union statute would not be sufficient; Opinions of the Justices to the Senate, 440 Mass. 1201, 1207-1208, 802 N.E.2d 565 (2004); it did so by way of an advisory opinion in the absence of an operating civil union statutory scheme. Thus, the majority in the present case stands alone in mandating gay marriage as a matter of state constitutional law in the presence of both a fully functioning civil union statute and a highly relevant23 and revealing public record of extraor*294dinary political support for gay marriage through legislation.

I disagree with the cramped notion of political power applied by the majority. The majority, relying on the plurality opinion in Frontiero v. Richardson, 411 U.S. 677, 686 n.17, 93 S. Ct. 1764, 36 L. Ed. 2d 583 (1973), asserts that, because there has never been, in Connecticut, an openly gay person elected to statewide office or appointed to our higher courts, gay persons “ ‘remain apolitical underclass’ ” in our state. I agree that election or appointment to high office is one aspect of a group’s political power, and that the plurality opinion in Frontiero supports that view. I also believe, however, that the legislative record regarding a particular group is another measure of the group’s political power, and that Cleburne supports that view.24

*295Consequently, the political power of a group is not measured solely by whether one who is a member of the group has been elected or appointed to high office. It is also measured by whether the group has been and is able to secure the passage of important and beneficial legislation on its behalf. One does not measure the political power in this state of organized labor, for example, solely by examining the number of labor union officers or members elected or appointed to high public office; or the political power of the business community solely by examining the number of chief executive officers of major corporations, or the number of officers of the Connecticut Business and Industry Association, so elected or appointed; or the political power of the plaintiffs’ trial bar solely by examining the number of the plaintiffs’ lawyers, or officers of the Connecticut Trial Lawyers Association, so elected or appointed. On the contrary, one measures the political power of those powerful groups also—indeed, often primarily—by examining the success they have achieved in enacting legislation that affects their interests.

Thus, the legislative history in our state for the past thirty-seven years, beginning with the passage of the Penal Code in 1971, and the public record discussed previously, are proof of the political power of gay persons in this state. Simply put, one cannot read the record of legislation over the past thirty-seven years, including the passage of the civil union legislation in 2005, watch the video of the press briefing following the introduction of the gay marriage bill in early 2007, read the *296outpouring of political support for that bill and the vote of the judiciary committee in favorably reporting out the bill, and read the press release of the cochairs of the judiciary committee, including the comments of other influential legislators, regarding the bill, and reasonably conclude that gay persons are a political underclass in today’s Connecticut. Rather, the only reasonable conclusion from this extraordinary public record is that gay persons as a class now have in Connecticut the political power to enact gay marriage legislation—sooner rather than later.

Consequently, I also disagree with the majority’s characterization of our state’s admirable record of legislation described previously as “supporting the conclusion that the subject group is in need of heightened constitutional protection.” (Emphasis in original.) In the context of equal protection jurisprudence, this characterization renders a group’s political power, as demonstrated by its ability to secure beneficial and protective legislation, essentially irrelevant.

Under the majority’s view, if the state has enacted a large body of legislation beneficial to or protective of a particular group—as this state has done with respect to gay persons—that means that the group lacks political power because the legislation is evidence of the group’s need for protection. But if the state has not enacted such legislation, that also undoubtedly would mean that the group lacks political power because of that lack of legislation. Indeed, that lack of such legislation is precisely what Chief Judge Kaye cited, in her dissent in Hernandez v. Robles, supra, 7 N.Y.3d 388, as evidence of a lack of political power of gay persons in New York: “The simple fact is that New York has not enacted anything approaching comprehensive statewide domestic partnership protections for same sex couples, much less marriage or even civil unions.”

*297In this way, the political power of the group, as demonstrated by the state’s record of legislation, is rendered irrelevant to the equal protection analysis, because either way—if there is or is not a body of beneficial legislation—it supports the view that the group lacks political power. This simply cannot be.

It is true that our long history, beginning in 1971, and running through 2005, of enacting legislation protective of the rights of gay persons demonstrates their need for protection. Of course the legislation was aimed at rectifying historic and ongoing wrongs. That is always what civil rights legislation aims to do. But it is a strangely narrow view of such legislation to say that it supports heightened scrutiny because it demonstrates the group’s need for protection. This view ignores the fact that the body of legislation obviously has another, equally important aspect: it also clearly demonstrates the political power of the group to bring about beneficial and protective legislation for the precise purpose of rectifying those wrongs. In my view, it is untenable to dismiss, as the majority does, this other important aspect of such legislation. Moreover, were there no record of such legislation in this state, the majority would undoubtedly—and justifiably—cite that as evidence of a lack of political power.

It is also true, as the majority notes, that, despite the growing political power of both women and African-Americans, neither gender nor race has since been questioned as a class entitled to strict scrutiny. That does not compel the conclusion, however, that political power must be relegated to secondary status in our own state constitutional protection jurisprudence. As I indicate in part II of this opinion, our' state constitution already specifically protects both gender and race, among other classes, as entitled to strict scrutiny. Thus, there is no need to consider even the possibility of a reclassification of those two classes under our constitu*298tion, and I would not attempt to answer the academic question asked by the majority, namely: why, if the political factor is important, do both gender and race still retain their heightened scrutiny status? No one has ever suggested—nor do I—that, once established, a class entitled to heightened scrutiny protection may subsequently lose that status if its political power grows substantially.25 No court has ever been presented with such a question, and this court certainly never will be. But the answer to that academic question should not be that, when considering whether as a matter of first impression under our own state constitution a new, unspecified group is entitled to heightened scrutiny, we must, as the majority does, nevertheless ignore the root of the entire heightened scrutiny analysis, namely, the need of a burdened class for judicial intervention because of its likely inability to invoke the political process on its own, and blind ourselves to the powerful record of political support for gay marriage in the pres*299ent case that clearly indicates that the legislature is about to do by legislation what the majority does by adjudication.

2

Marriage Is a Fundamental Social Institution

The second reason why I conclude that the political power factor is particularly significant in the context of the present case is that marriage is a fundamental social institution. That being so, if it is to be changed, as the majority acknowledges that its decision does, it is appropriate that it be done by the democratic process, rather than by judicial fiat.26

Marriage is more than a relationship sanctioned by our laws. It is a fundamental and ancient social institution that has existed in our state from before its found*300ing and throughout the world for millennia. It cannot be disputed that its meaning has always been limited to the union of a man and a woman. And it cannot be disputed that, by mandating same sex marriages, the majority has wrought a significant change in that fundamental social institution. To change the law of marriage by expanding it to include same sex couples is to change the institution that the law reflects.

Furthermore, that change is contrary to the public policy of the state as specifically declared by the legislature. The same section of the civil union statutory scheme that grants equal rights of marriage to civil unions specifically defines “marriage ... as the union of one man and one woman.” General Statutes § 46b-38nn; see also General Statutes § 45a-727a (“The General Assembly finds that ... [4] It is further found that the current public policy of the state of Connecticut is now limited to a marriage between a man and a woman.”).

It is an extreme act of judicial power to declare a statute unconstitutional. It should be done with great caution and only when the case for invalidity is established beyond a reasonable doubt. Kinney v. State, 285 Conn. 700, 710, 941 A.2d 907 (2008). That principle applies with even more force when the judicial act of invalidation constitutes the alteration of a fundamental social institution, such as marriage.

Fundamental social institutions are the product of a web of history, tradition, custom, culture, widely shared expectations and law. But they are not static. They change. In my view, there are three ways in which such social institutions change, and sometimes the three ways will, to one extent or the other, overlap or combine with each other.

The first, and probably the most common, is by a process of gradual change over time, as a society’s *301(or a state’s) customs, culture and shared expectations change with changed conditions, without the prompting of law, legislative or judicial. An example of this is the change over the past decades in the fundamental social institution of the family. It cannot be disputed that our conception of the family has broadened from what it previously was. That broadened reach is reflected in § 45a-727a (3), which, in addressing the best interest of a child who is the subject of an adoption, refers to “a loving, supportive and stable family, whether that family is a nuclear, extended, split, blended, single parent, adoptive or foster family . . . .” (Emphasis added.) This list of different types of families is not a legislative prescription; it is, instead, a legislative recognition of what has already happened in society. This court has also recognized the changing nature of the institution of the family. See Michaud v. Wawruck, 209 Conn. 407, 415, 551 A.2d 738 (1988) (“[traditional models of the nuclear family have come, in recent years, to be replaced by various configurations of parents, stepparents, adoptive parents and grandparents”).

The second way in which a fundamental social institution may change is by legislation. Thus, the legislature may say, as a matter of public policy, that for a particular purpose or purposes, but not necessarily all purposes, a particular social institution will be recognized in a context in which it may not have been recognized previously. Our civil union statute is a good example of this kind of legislative change of a social institution. The legislature has said that all of the legal rights and obligations of the fundamental social institution of marriage will be extended beyond opposite sex couples to same sex couples, in a new and differently named social institution of civil union. In fact, by virtue of § 46b-38oo, the legislature specifically has provided that, except for certain purposes,27 “[w]herever in the general statutes *302. . . the term ‘marriage’ is used or defined, a civil union shall be included in such use or definition.” Thus, it may fairly be said that, except for the particular specified purposes of the name of the institution and the corresponding statement of the “current” public policy of the state, the legislature has changed the fundamental institution of marriage to include civil unions.

The virtue of these first two ways of changing a fundamental social institution is that each has the general support—either explicit or implicit—of the people. In the first way—by a natural process of social change— the people have voted for the change by their patterns of behavior over time. In the second way—by legislation— the people have voted through their duly elected representatives.

The third way is by judicial decision. In my view, this is the least desirable method of change of a fundamental social institution because it is effected, not through the people’s behavioral patterns or the votes of their elected representatives, but through the reasoning and analysis of judges, who are accountable to the people only through their oaths and consciences. In this way, a fundamental social institution, which is the product of a state’s history, tradition, custom, widely shared expectations and law, is changed by the decision of judges, who need not necessarily give deference to that history, tradition, custom and widely shared expectations. This is an extreme action for a court to take. Therefore, the court ought to be very cautious before *303doing so, and be very sure that it is constitutionally necessary. The majority opinion fails this test.

This is not to say, however, that a court should not, in engaging in the process of constitutional adjudication, change a fundamental social institution. When it is necessary to vindicate constitutional rights, it is the court’s obligation to do so, irrespective of the fact that the decision will change a fundamental social institution. See, e.g., Brown v. Board of Education, 347 U.S. 483, 74 S. Ct. 686, 98 L. Ed. 873 (1954) (striking down system of legally segregated schools as violative of equal protection of laws, irrespective of fact that such systems could be considered as fundamental social institutions in southern states). The present case, however, is not that kind of case.

Instead, this is a case in which the majority has given an answer that is not constitutionally compelled. The public record clearly indicates that the legislature is poised to consider and, in all likelihood, to enact gay marriage legislation. The majority in this case has, unfortunately, unnecessarily short-circuited this socially exemplary—and, in my view, superior— method of changing the nature of the fundamental institution of marriage in this state.

“We cannot escape the reality that the shared societal meaning of marriage—passed down through the common law into our statutory law—has always been the union of a man and a woman. To alter that meaning would render a profound change in the public consciousness of a social institution of ancient origin. When such change is not compelled by a constitutional imperative, it must come about through civil dialogue and reasoned discourse, and the considered judgment of the people in whom we place ultimate trust in our republican form of government. Whether an issue with such far-reaching social implications as how to define *304marriage falls within the judicial or the democratic realm, to many, is debatable. [The majority of this court] think [s] that this [c]ourt should settle the matter, insulating it from public discussion and the political process. Nevertheless, a court must discern not only the limits of its own authority, but also when to exercise forbearance, recognizing that the legitimacy of its decisions rests on reason, not power. We [should] not short-circuit the democratic process from running its course.” Lewis v. Harris, supra, 188 N.J. 460-61.

II

SEXUAL ORIENTATION IS NOT A SUSPECT CLASS UNDER ARTICLE FIRST, §§ 1 AND 20, OF THE CONSTITUTION OF CONNECTICUT

For all of the reasons that I have explained in part I of this dissenting opinion, I also conclude that sexual orientation is not a suspect class under article first, § 1, and article first, § 20, of the constitution of Connecticut, as amended by articles five and twenty-one of the amendments. Put another way, if it is not a quasi-suspect class, a fortiori it is not a suspect class.

There is, however, another, more fundamental reason why sexual orientation is not a suspect class under our state constitution, and that reason is rooted in the language and history of the constitution itself. Article first, § 20, of the constitution of Connecticut already explicitly affords the equal protection of the law to eight specific characteristics—namely, “religion, race, color, ancestry, national origin, sex or physical or mental disability.” We consistently have held that any of these enumerated classes invokes strict scrutiny analysis. See Daly v. DelPonte, 225 Conn. 499, 512-15, 624 A.2d 876 (1993). Furthermore, this list of specifically protected classes has grown over time, by virtue of the democratic process of constitutional amendment. As originally adopted in the 1965 constitution, the list was *305limited to religion, race, color, ancestry and national origin. See Conn. Const. (1965), art. I, § 20. In 1974, the constitution was amended to include sex; see Conn. Const., amend. V (November 27, 1974); and in 1984, to include physical and mental disability. See Conn. Const., amend. XXI (November 28, 1984). I conclude, from this language and history, that these democratically selected groups are those that command the most demanding form of judicial intervention, namely, strict scrutiny. The constitutional framework embodies a balancing of the necessity of respect for the democratic process—including the most significant part of that process, namely, amending our constitution—and the need for judicial intervention to protect those who cannot effectively use the political process to protect themselves. The list of specifically protected classes is the people’s answer to the question of which groups are entitled to the most demanding level of judicial oversight. I would, therefore, reserve other groups’ claims to protection for intermediate scrutiny, rather than the most demanding form of judicial intervention, namely, strict scrutiny.

Our caution in Moore v. Ganim, 233 Conn. 557, 597, 660 A.2d 742 (1995), that the list of protected classes in article first, § 20, of the constitution of Connecticut is “not dispositive,” is not inconsistent with this conclusion. First, Moore dealt with a claim of a fundamental obligation to provide subsistence to the indigent; it was not an equal protection case. Second, we already have recognized intermediate level scrutiny for unenumerated groups, and I would continue that line of jurisprudence. See Carofano v. Bridgeport, 196 Conn. 623, 641, 495 A.2d 1011 (1985). Thus, the fact that a group is not enumerated in article first, § 20, would not mean that it had no claim to intermediate scrutiny. In this regard, I agree with the majority.

*306Having concluded that the plaintiffs’ claim to the right to many under the equal protection provisions of the state constitution is not subject to either strict or intermediate scrutiny, I next turn to the plaintiffs’ remaining claims, which the majority did not reach. Those claims are that: (1) the civil union statute creates an impermissible gender based classification in violation of their right to equal protection under article first, § 20, of the constitution of Connecticut, as amended by articles five and twenty-one of the amendments; and (2) the state’s definition of marriage as limited to opposite sex couples violates the plaintiffs’ fundamental right to marry in violation of their right to due process of law under article first, §§ 8 and 10, and their right to equal protection under article first, § 1, of the constitution of Connecticut. I reject both claims.

Ill

THE STATUTORY DEFINITION OF MARRIAGE DOES NOT DISCRIMINATE ON THE BASIS OF GENDER

The plaintiffs claim that the civil union statute, which defines marriage as the union of a man and woman, creates an impermissible, gender based classification in violation of their right to equal protection under article first, § 20, of the constitution of Connecticut, as amended by articles five and twenty-one of the amendments.28 Specifically, the plaintiffs claim that the statute *307discriminates on the basis of gender because it prohibits a man from marrying a man, but allows a woman to do so, and it prohibits a woman from marrying a woman, but allows a man to do so. The state contends, however, that the civil union statute does not create gender based classifications, and instead bars men and women equally from marrying a person of the same sex. I agree with the defendants.

Article first, § 20, of the constitution of Connecticut, as amended by articles five and twenty-one of the amendments, provides: “No person shall be denied the equal protection of the law nor be subjected to segregation or discrimination in the exercise or enjoyment of his or her civil or political rights because of religion, race, color, ancestry, national origin, sex or physical or mental disability.” (Emphasis added.) Section 46b-38nn provides: “Parties to a civil union shall have all the same benefits, protections and responsibilities under law, whether derived from the general statutes, administrative regulations or court rules, policy, common law or any other source of civil law, as are granted to spouses in a marriage, which is defined as the union of one man and one woman.” (Emphasis added.) This statute does not differentiate between the genders because both men and women are equally barred from marrying a person of the same sex. Thus, so long as the civil union statute treats both genders equally in prohibiting both from entering a same sex marriage, it does not run afoul of the constitutional provision barring discrimination on the basis of sex.

Linguistically, the plaintiffs’ claim fails. They are not prohibited from marrying “because of [their] . . . sex . . . .” They are prohibited from marrying because of their sexual orientation.

*308This conclusion is supported by the purpose of the constitutional provision at issue. The pertinent language of the constitutional provision must be understood in light of its purpose. See Cologne v. Westfarms Associates, 192 Conn. 48, 62, 469 A.2d 1201 (1984). The history of this provision makes clear that it was designed, like its federal counterpart, namely, the equal rights amendment that failed ratification by the states, to equalize treatment of the two genders—male and female. Although worded to include both genders, it was prompted by the need to equalize the treatment of women with that of men before the law. It was not designed to equalize treatment between same sex couples and opposite sex couples, with respect to the right to marry or other rights. There is no evidence that the framers of the resolution that became the constitutional amendment had any such treatment of rights in mind.

The state provision was adopted by referendum in 1974, while the proposed equal rights amendment to the federal constitution was circulating among the states for possible ratification. See Conn. Const., amend. V. The legislative history of amendment Y makes it clear that the intent of the legislature was to remedy the past unequal treatment of women, as compared to men, in many situations. See, e.g., 15 H.R. Proc., Pt. 2, 1972 Sess., pp. 872-73 (Representative David H. Neiditz, describing the types of discriminatory laws to be invalidated by the proposed amendment, stated: “[Laws] to safeguard the health and morals of women, our laws limiting the number of hours which women may work, [restricting] women to certain kinds of employment and requiring] employers of women to give them special benefits, such as seats in factories. Instead of protecting women, these laws have served only to hinder this economic advancement, to [channeling] most women into the lowest paying and the least rewarding of jobs.”); id., p. 877 (Representative Francis J. Collins, remarking *309that purpose of amendment was to eliminate “discrimination purely on the basis of sex and for no other reason”); 15 S. Proc., Pt. 4, 1972 Sess., p. 1526 (Senator Joseph I. Lieberman, remarking that the amendment was intended to address existing gender inequalities under the law, and the results of that unequal treatment, stated: “[M]en and women of equal age having worked an equal period of years, showed tremendous discrepancy between the amount of income actually being enjoyed by men and that being enjoyed by women. Namely, men are making much more money for the same kind of work over [a] similar period of time.”); Conn. Joint Standing Committee Hearings, Government Administration and Policy, 1972 Sess., p. 34 (Barbara Lifton, Connecticut State Women’s Political Caucus, testifying at the committee hearing in support of the amendment, stated: “I will not spend time listing the many laws now on the books which, under the guise of ‘protecting’ women, really serve to deny them the opportunities for career advancement or financial security now enjoyed only by men.”). It is clear from these excerpts of the legislative history that the intent of the legislature in passing the state equal rights amendment was to make it unconstitutional for the state to favor one gender over another.

The plaintiffs rely on McLaughlin v. Florida, 379 U.S. 184, 85 S. Ct. 283, 13 L. Ed. 2d 222 (1964), and Loving v. Virginia, 388 U.S. 1, 87 S. Ct. 1817, 18 L. Ed. 2d 1010 (1967), for the proposition that the mere equal application of a law containing gender classifications does not render the statute valid for equal protection purposes. This reliance is misplaced.

McLaughlin and Loving involved similar statutes. The statute at issue in McLaughlin criminalized the cohabitation of a white man and an African-American woman, or an African-American man and a white woman. McLaughlin v. Florida, supra, 379 U.S. 184-85. *310The law was part of a statutory scheme that prohibited “living in adultery” in general and required proof of intercourse as one of its elements. Id., 185. A separate provision, the one at issue in McLaughlin, barred the mere cohabitation of a white person and a person of African-American descent; intercourse was not an element of the offense. Id., 186-87. The statutory scheme declared unconstitutional in Loving prohibited the intermarriage of a white person and a “colored person.” Loving v. Virginia, supra, 388 U.S. 4. In both cases, the court invalidated the statutes at issue, despite the fact that each punished the participants equally, on the basis of its conclusion that each had the purpose of furthering and endorsing the doctrine of white supremacy; id., 7; and constituted an invidious official discrimination based on race. McLaughlin v. Florida, supra, 196.

The present case is distinguishable from Loving and McLaughlin. There has been no showing that the state’s civil union statute was passed with the purpose of discriminating based on gender. The absence of such evidence, or even a credible argument in support of the claim of gender discrimination, is highlighted by the contrast with both Loving and McLaughlin. In both of those cases, despite the fact that the law was applied equally to both races, it was clear which racial group was being favored and which disfavored.

IV

THE STATUTORY DEFINITION OF MARRIAGE DOES NOT DEPRIVE THE PLAINTIFFS OF THE FUNDAMENTAL CONSTITUTIONAL RIGHT TO MARRY

Finally, I address the plaintiffs’ claim that the civil union statute’s exclusion of same sex couples from marriage violates their right to due process under article *311first, §§ 8 and 10,29 of the constitution of Connecticut, and their right to equal protection under article first, § 1, of the constitution of Connecticut, because it infringes on the fundamental right to many. I reject this claim. I conclude that the fundamental right to marry under our state constitution is the right to marry someone of the opposite sex and does not include the right to marry someone of the same sex.

Ordinarily, in determining whether our state constitution affords a particular fundamental right, we would employ the familiar test articulated in State v. Geisler, 222 Conn. 672, 685, 610 A.2d 1225 (1992). That test focuses on an analysis of six factors, namely: “(1) the text of the constitutional provisions at issue; (2) holdings and dicta of this court, and the Appellate Court; (3) federal precedent; (4) sister state decisions; (5) the historical approach; and (6) contemporary economic and sociological, or public policy, considerations.” Moore v. Ganim, supra, 233 Conn. 581.30

In the present case, however, I conclude that a full Geisler analysis is not necessary, because in my view the dispositive issue is the scope of the right at issue. There is no doubt that, as I explain in the following discussion, there is a fundamental right to marry under our state constitution. The question is how to define that right for constitutional purposes. The plaintiffs claim that the fundamental right is the right to marry a person of one’s choice and, therefore, it should be construed to include a person of the same sex. The state maintains, to the contrary, that the fundamental *312right is the right to marry as traditionally understood, namely, the right to marry a person of the opposite sex of one’s choice and, therefore, it does not include the right to marry someone of the same sex.

If the plaintiffs are correct that the fundamental right to marry is defined, for constitutional purposes, broadly enough to include the right to marry a person of one’s choice, then they would have a viable claim that it includes the right to marry a person of the same sex. If the state is correct, however, that the fundamental right to marry is not defined that broadly and that it is defined, instead, as the right to marry a person of the opposite sex, then the plaintiffs’ claim necessarily fails. I conclude that the fundamental right to marry, under our state constitution, is properly defined as the right to marry a person of the opposite sex and, therefore, does not include the right to marry a person of the same sex.31

It is well established that the right to marry is guaranteed by our state constitution. Gould v. Gould, 78 Conn. 242, 244, 61 A. 604 (1905). It is also “part of the fundamental ‘right of privacy’ implicit in the [f]ourteenth [a]mendment’s [d]ue [p]rocess [c]lause.” Zablocki v. Redhail, 434 U.S. 374, 384, 98 S. Ct. 673, 54 L. Ed. 2d 618 (1978); Zapata v. Burns, 207 Conn. 496, 506, 542 A.2d 700 (1988).

The United States Supreme Court has given wise guidance to the judicial process of defining fundamental rights for constitutional purposes. “[W]e ha[ve] always been reluctant to expand the concept of substantive due process because guideposts for responsible deci*313sionmaking in this uncharg[ed] area are scarce and open-ended. ... By extending constitutional protection to an asserted right or liberty interest, we, to a great extent, place the matter outside the arena of public debate and legislative action. We must therefore exercise the utmost care whenever we are asked to break new ground in this field . . . lest the liberty protected by the [d]ue [pjrocess [cjlause be subtly transformed into the policy preferences of the [m] embers of this [cjourt ....

“Our established method of substantive-due-process analysis has two primary features: First, we have regularly observed that the [djue [pjrocess [cjlause specially protects those fundamental rights and liberties which are, objectively, deeply rooted in this [njation’s history and tradition . . . and implicit in the concept of ordered liberty, such that neither liberty nor justice would exist if they were sacrificed .... Second, we have required in substantive-due-process cases a careful description of the asserted fundamental liberty interest. . . . Our [njation’s history, legal traditions, and practices thus provide the crucial guideposts for responsible decisionmaking . . . that direct and restrain our exposition of the [djue [pjrocess [cjlause.” (Citations omitted; internal quotation marks omitted.) Washington v. Glucksberg, 521 U.S. 702, 720-21, 117 S. Ct. 2258, 138 L. Ed. 2d 772 (1997). Our own state precedent is consistent with these principles. “In construing the contours of our state constitution, we must exercise our authority with great restraint in pursuit of reaching reasoned and principled results. . . . We must be convinced, therefore, on the basis of a complete review of the evidence, that the recognition of a constitutional right or duty is warranted.” (Citation omitted; internal quotation marks omitted.) Moore v. Ganim, supra, 233 Conn. 581.

*314Thus, in defining the scope of the fundamental right to marry under our state constitution, we are cautioned to exercise our authority with great restraint; to be reluctant to recognize new claims to fundamental rights because of the lack of reliable guideposts for responsible decision making; to look to those fundamental rights and liberties that are deeply rooted in our nation’s history and tradition; to be careful in describing the right at issue; and to exercise the utmost care when asked to break new ground. The overarching reason for this judicial caution is that, by declaring a right as fundamental, we to a large extent place it outside the area of public debate and legislative action. These cautionary principles lead me to conclude that the fundamental right to marry under our state constitution cannot be so broadly defined in its scope to include the right to same sex marriage.

First, as I explained previously in this opinion, marriage is a fundamental institution in our state, as well as our nation, and recognizing it to include same sex marriage would be to change its nature. That is a change that should be left to the realm of public debate and legislative action, particularly because, as I also explain in part I of this opinion, the legislature is poised to consider doing so.

Second, to define the fundamental right to marry so broadly as to include the right to marry a person of the same sex would be inconsistent with the notion that we should be careful in describing the right at issue, with the notion that we should exercise our authority with great restraint, and with the notion that we should exercise the utmost care when asked to break new ground. To define it as the plaintiffs suggest would, on the contrary, display a lack of the utmost care in breaking new ground and in defining the right at issue, and would be to substitute a personal policy choice for sound constitutional analysis.

*315Third, same sex marriage cannot reasonably be regarded as deeply rooted in our state’s history and traditions. “We cannot escape the reality that the shared societal meaning of marriage—passed down through the common law into our statutory law—has always been the union of a man and a woman.” Lewis v. Harris, supra, 188 N.J. 460. It cannot be disputed that, until recent years when the issue of same sex marriage has been presented to both our legislature and our courts, the notion of marriage was uniformly understood as the union of a man and a woman. Thus, to declare that the fundamental right to marry under our state constitution is defined so broadly as to include same sex marriage would be counter to that history and tradition.

The plaintiffs rely on Loving v. Virginia, supra, 388 U.S. 2, in which the court concluded that Virginia’s antimiscegenation laws violated the right to equal protection, for the proposition that the fundamental right to marry is broadly defined. That reliance is misplaced. Although the court in Loving referred to the right to marry in general terms, it is clear that it contemplated the traditional notion of marriage as between a man and woman. The court stated: “Marriage is one of the basic civil rights of man, fundamental to our very existence and survival.” (Emphasis added; internal quotation marks omitted.) Id., 12. Thus, its reference to marriage as fundamental to our survival must be taken as a reference to marriage as linked to procreation.

The court made a similar connection in one of the primary decisions on which it relied in Loving. In Skinner v. Oklahoma, 316 U.S. 535, 536, 62 S. Ct. 1110, 86 L. Ed. 1655 (1942), the court concluded that a state law that had provided for the sterilization of persons convicted of two or more felonies “involving moral turpitude” unconstitutionally infringed upon the fundamental right to procreation. The court emphasized that the issue implicated a “basic liberty”; id., 541; and in *316the course of its discussion of the importance of the right of procreation, the court stated: “Marriage and procreation are fundamental to the very existence and survival of the race.” (Emphasis added.) Id.

The plaintiffs also claim that the court’s decision in Griswold v. Connecticut, 381 U.S. 479, 85 S. Ct. 1678, 14 L. Ed. 2d 510 (1965), conclusively severed any link between marriage and procreation. That claim relies on an incorrect reading of Griswold. Although Griswold relied on the nature of the marital relationship in arriving at its conclusion that the state statute at issue, proscribing the use of contraceptives, was unconstitutional, the court’s primary concern in that decision was the right to marital privacy, not the right to marry. Id., 485-86. This link between marriage and procreation was not severed simply because the court recognized that the state cannot compel a married couple to have children. Instead, the court recognized that married couples have a fundamental right to privacy in deciding whether to procreate. Recognizing that married couples have such a choice, however, does not alter the fact that the fundamental nature of the right to marry, for constitutional purposes, always has been linked to its procreative aspect.

Similarly, the plaintiffs’ reliance on Turner v. Safley, 482 U.S. 78, 107 S. Ct. 2254, 96 L. Ed. 2d 64 (1987), also for the proposition that the link between marriage and procreation has been severed, is unpersuasive. In Turner, the Supreme Corut invalidated a prison regulation that required inmates to seek the permission of the superintendent of the prison in order to get married, and authorized the granting of that permission only when there were “compelling reasons” for doing so. Id., 82. The court struck down the regulation because it did not pass rational basis scrutiny, the applicable level of review of a prison regulation that impinges on prisoners’ constitutional rights. Id., 89-91. The plaintiffs *317claim that the court’s decision, in light of the fact that, as the plaintiffs claim, prisoners had no expectation of the possibility of procreating, demonstrates that the link between marriage and procreation had been severed. On the contrary, the reasoning of Turner provides further support for the conclusion that one of the primary reasons for the status of marriage as a fundamental right is its implicit link to procreation. Specifically, in striking down the regulation, the court noted particularly that “most inmates eventually will be released by parole or commutation, and therefore most inmate marriages are formed in the expectation that they ultimately will be fully consummated.” Id., 96.

The plaintiffs also rely on Lawrence v. Texas, 539 U.S. 558, 123 S. Ct. 2472, 156 L. Ed. 2d 508 (2003), in support of their claim that the right to marry includes the right to marry a person of the same sex. In overruling Bowers v. Hardwick, 478 U.S. 186, 106 S. Ct. 2841, 92 L. Ed. 2d 140 (1986), and declaring unconstitutional in violation of federal due process a state statute criminalizing private homosexual conduct between consenting adults; Lawrence v. Texas, supra, 578; Lawrence represented a significant development in the court’s thinking about sexual orientation. That development, however, is not as radical as the plaintiffs make it out to be. The court, in fact, was careful to craft its decision very narrowly, noting that the case did “not involve whether the government must give formal recognition to any relationship that homosexual persons seek to enter." (Emphasis added.) Id. In so limiting the scope of its decision, the court in Lawrence implicitly recognized that it is one thing to conclude that criminalizing private, consensual homosexual conduct between adults violates due process; it is entirely another matter to conclude that the constitution requires the redefinition of the institution of marriage to include same sex couples. Id., 567.

*318The plaintiffs also rely on Lawrence in urging this court to eschew the caution of Glucksberg to provide a “careful description of the asserted fundamental liberty interest”; (internal quotation marks omitted) Washington v. Glucksberg, supra, 521 U.S. 721; and define the right at issue in the present case more broadly, as the right to marry a person of one’s choice, rather than as the right to marry a person of the same sex. In Lawrence, the court concluded that it had framed the fundamental right at issue too narrowly in Bowers, as the “right [of] homosexuals to engage in sodomy . . . .” (Internal quotation marks omitted.) Lawrence v. Texas, supra, 539 U.S. 566. The court in Lawrence defined the right more broadly, stating that the right involved more than sexual conduct. Although the statutes at issue purported merely to prohibit certain sexual conduct, the court observed, “[t]heir penalties and purposes . . . have more far-reaching consequences, touching upon the most private human conduct, sexual behavior, and in the most private of places, the home. The statutes . . . seek to control a personal relationship that, whether or not entitled to formal recognition in the law, is within the liberty of persons to choose without being punished as criminals.” Id., 567. In perhaps the most succinct statement of the right at issue, the court stated that the case involved the right of “adult persons in deciding how to conduct their private lives in matters pertaining to sex.” Id., 572.

The plaintiffs argue that the Supreme Court’s repudiation in Lawrence of the narrow definition of the right at issue in Bowers requires the conclusion that the right at issue in the present case also must be defined broadly. That argument ignores the significant context of Lawrence as opposed to the present case.

In tracing the developments in its case law following Bowers and explaining why those subsequent developments required the overruling of Bowers, the court in *319Lawrence emphasized two principles: the law at issue impermissibly infringed upon the right to privacy; and the law stigmatized homosexuals. Id., 573-75. Regarding the right to privacy, the court remarked: “The . . . decision [in Planned Parenthood of Southeastern Pennsylvania v. Casey, 505 U.S. 833, 112 S. Ct. 2791, 120 L. Ed. 2d 674 (1992)] again confirmed that our laws and tradition afford constitutional protection to personal decisions relating to marriage, procreation, contraception, family relationships, child rearing, and education.” Lawrence v. Texas, supra, 573-74. Thus, the court characterized the right at issue in Lawrence as a right of privacy and freedom from government intrusion. Next, the court grounded its decision on the stigma that the Texas statute imposed upon homosexuals as a group, stating that “[w]hen homosexual conduct is made criminal by the law of the [s]tate, that declaration in and of itself is an invitation to subject homosexual persons to discrimination both in the public and in the private spheres. ... Its continuance as precedent demeans the lives of homosexual persons.” Id., 575. Connecticut’s civil union statute was not enacted, as was the Texas criminal statute, for the purpose of stigmatizing homosexuals.

Thus, the two concerns that informed the court’s decision in Lawrence, protecting citizens from government intrusion in their right to privacy, and protecting a specific group from stigmatization, are not present in our case. First, the right at issue in the present case is drastically different from that at issue in Lawrence. The plaintiffs do not seek protection from governmental intrusion of their privacy; instead, they seek affirmative action on the part of the government—they seek official recognition of the status of a relationship that would require a significant change in a fundamental societal institution. Second, the civil union statute does not stigmatize homosexuals. As I set forth in part I of this *320dissent, the development of the law in this state dealing with sexual orientation demonstrates that the legislature had no intention, in passing the civil union statute, to encourage discrimination against or to stigmatize homosexuals. On the contrary, that history supports the conclusion that the legislature has been working toward the eventual passage of a gay marriage bill, and that the civil union statute was an important step in that process.

V

APPLICATION OF THE RATIONAL BASIS STANDARD

Having concluded that Connecticut’s statutory definition of marriage “does not touch upon either a fundamental right or a suspect [or quasi-suspect] class”; (internal quotation marks omitted) Contractor’s Supply of Waterbury, LLC v. Commissioner of Environmental Protection, 283 Conn. 86, 93, 925 A.2d 1071 (2007); I also conclude that our marriage statutes survive rational basis review.

The paradigm of a rational basis upon which challenged legislation may be sustained is that the legislature is not required to solve all aspects of a social problem, or address all aspects of a social issue, at once. It is entitled to take things one step at a time. Id., 105 (“the legislature has the freedom to craft legislation to accomplish its purpose in gradual steps”). That is precisely the basis on which our marriage and civil union statutes are premised. The legislature has, since 1971, consistently been enacting legislation beneficial to and protective of gay persons. It has been considering the claims of gay persons to secure the right to marry for eleven years, according to Representative Lawlor, who should know. It took a major step, in 2005, by enacting the civil union law, which afforded parties to civil unions all of the rights and obligations of marriage, except the name of the institution. It then had before *321it a gay marriage bill in 2007, with great political support, on which it deferred action solely to permit public opinion to continue to mount in its favor until, in the opinion of its sponsors, it would pass within one year or two, with even greater political support. It is entirely rational for the legislature to address the issue of gay marriage step-by-step, rather than all at once.

I therefore dissent, and would affirm the judgment of the trial court.