I'm a liberal Democrat. And I do not favor same-sex marriage. Do those positions sound contradictory? To me, they fit together.
Many seem to believe that marriage is simply a private love relationship between two people. They accept this view, in part, because Americans have increasingly emphasized and come to value the intimate, emotional side of marriage, and in part because almost all opinion leaders today, from journalists to judges, strongly embrace this position. That's certainly the idea that underpinned the California Supreme Court's legalization of same-sex marriage.
But I spent a year studying the history and anthropology of marriage, and I've come to a different conclusion.
Marriage as a human institution is constantly evolving, and many of its features vary across groups and cultures. But there is one constant. In all societies, marriage shapes the rights and obligations of parenthood. Among us humans, the scholars report, marriage is not primarily a license to have sex. Nor is it primarily a license to receive benefits or social recognition. It is primarily a license to have children.
In this sense, marriage is a gift that society bestows on its next generation. Marriage (and only marriage) unites the three core dimensions of parenthood -- biological, social and legal -- into one pro-child form: the married couple. Marriage says to a child: The man and the woman whose sexual union made you will also be there to love and raise you. Marriage says to society as a whole: For every child born, there is a recognized mother and a father, accountable to the child and to each other.
These days, because of the gay marriage debate, one can be sent to bed without supper for saying such things. But until very recently, almost no one denied this core fact about marriage. Summing up the cross-cultural evidence, the anthropologist Helen Fisher in 1992 put it simply: "People wed primarily to reproduce." The philosopher and Nobel laureate Bertrand Russell, certainly no friend of conventional sexual morality, was only repeating the obvious a few decades earlier when he concluded that "it is through children alone that sexual relations become important to society, and worthy to be taken cognizance of by a legal institution."
Marriage is society's most pro-child institution. In 2002 -- just moments before it became highly unfashionable to say so -- a team of researchers from Child Trends, a nonpartisan research center, reported that "family structure clearly matters for children, and the family structure that helps children the most is a family headed by two biological parents in a low-conflict marriage."
