Gay marriage squares several circles at the heart of the domestic partnership debate. Unlike domestic partnership, it allows for recognition of gay relationships, while casting no aspersions on traditional marriage. It merely asks that gays be allowed to join in. Unlike domestic partnership, it doesn't open up avenues for heterosexuals to get benefits without the responsibilities of marriage, or a nightmare of definitional litigation. And unlike domestic partnership, it harnesses to an already established social convention the yearnings for stability and acceptance among a fast-maturing gay community.
Gay marriage also places more responsibilities upon gays; it says for the first time that gay relationships are not better or worse than straight relationships, and that the same is expected of them. And it's clear and dignified. There's a legal benefit to a clear, common symbol of commitment. There's also a personal benefit. One of the ironies of domestic partnership is that it's not only more complicated than marriage, it's more demanding, requiring an elaborate statement of intent to qualify. It amounts to a substantial invasion of privacy. Why, after all, should gays be required to prove commitment before they get married in a way we would never dream of asking of straights?
Legalizing gay marriage would offer homosexuals the same deal society now offers heterosexuals: general social approval and specific legal advantages in exchange for a deeper and harder-to-extract-yourself-from commitment to another human being. Like straight marriage, it would foster social cohesion, emotional security, and economic prudence. Since there's no reason gays should not be allowed to adopt or be foster parents, it could also help nurture children. And its introduction would not be some sort of radical break with social custom. As it has become more acceptable for gay people to acknowledge their loves publicly, more and more have committed themselves to one another for life in full view of their families and their friends. A law institutionalizing gay marriage would merely reinforce a healthy social trend. It would also, in the wake of AIDS, qualify as a genuine public health measure. Those conservatives who deplore promiscuity among some homosexuals should be among the first to support it. Burke could have written a powerful case for it.
The argument that gay marriage would subtly undermine the unique legitimacy of straight marriage is based upon a fallacy. For heterosexuals, straight marriage would remain the most significant--and only legal social bond. Gay marriage could only delegitimize straight marriage if it were a real alternative to it, and this is clearly not true. To put it bluntly, there's precious little evidence that straights could be persuaded by any law to have sex with–let alone marry—someone of their own sex. The only possible effect of this sort would be to persuade gay men and women who force themselves into heterosexual marriage (often at appalling cost to themselves and their families) to find a focus for their family instincts in a more personally positive environment. But this is clearly a plus, not a minus: gay marriage could both avoid a lot of tortured families and create the possibility for many happier ones. It is not, in short, a denial of family values. It's an extension of them.
Of course, some would claim that any legal recognition of homosexuality is a de facto attack upon heterosexuality. But even the most hardened conservatives recognize that gays are a permanent minority and aren't likely to go away. Since persecution is not an option in a civilized society, why not coax gays into traditional values rather than rail incoherently against them?
There's a less elaborate argument for gay marriage: it's good for gays. It provides role models for young gay people who, after the exhilaration of coming out, can easily lapse into short-term relationships and insecurity with no tangible goal in sight. My own guess is that most gays would embrace such a goal with as much (if not more) commitment as straights. Even in our society as it is, many lesbian relationships are virtual textbook cases of monogamous commitment. Legal gay marriage could also help bridge the gulf often found between gays and their parents. It could bring the essence of gay life–a gay couple—into the heart of the traditional straight family in a way the family can most understand and the gay offspring can most easily acknowledge. It could do as much to heal the gay-straight rift as any amount of gay rights legislation.
If these arguments sound socially conservative, that's no accident. It's one of the richest ironies of our society's blind spot toward gays that essentially conservative social goals should have the appearance of being so radical. But gay marriage is not a radical step. It avoids the mess of domestic partnership; it is humane; it is conservative in the best sense of the word. It's also about relationships. Given that gay relationships will always exist, what possible social goal is advanced by framing the law to encourage those relationships to be unfaithful, undeveloped, and insecure?