At the heart of the current debates about same-sex marriage are three crucial questions: What is marriage, why does marriage matter for public policy, and what would be the consequences of redefining marriage to exclude sexual complementarity?
Marriage exists to bring a man and a woman together as husband and wife to be father and mother to any children their union produces. It is based on the anthropological truth that men and women are different and complementary, the biological fact that reproduction depends on a man and a woman, and the social reality that children need both a mother and a father. Marriage predates government. It is the fundamental building block of all human civilization. Marriage has public purposes that transcend its private purposes. This is why 41 states, with good reason, affirm that marriage is between a man and a woman.
Government recognizes marriage because it is an institution that benefits society in a way that no other relationship does. Marriage is society’s least restrictive means of ensuring the well-being of children. State recognition of marriage protects children by encouraging men and women to commit to each other and take responsibility for their children. While respecting everyone’s liberty, government rightly recognizes, protects, and promotes marriage as the ideal institution for childbearing and childrearing.
Promoting marriage does not ban any type of relationship: Adults are free to make choices about their relationships, and they do not need government sanction or license to do so. All Americans have the freedom to live as they choose, but no one has a right to redefine marriage for everyone else.
In recent decades, marriage has been weakened by a revisionist view that is more about adults’ desires than children’s needs. This reduces marriage to a system to approve emotional bonds or distribute legal privileges.
Redefining marriage to include same-sex relationships is the culmination of this revisionism, and it would leave emotional intensity as the only thing that sets marriage apart from other bonds. Redefining marriage would further distance marriage from the needs of children and would deny, as a matter of policy, the ideal that a child needs both a mom and a dad. Decades of social science, including the latest studies using large samples and robust research methods, show that children tend to do best when raised by a mother and a father. The confusion resulting from further delinking childbearing from marriage would force the state to intervene more often in family life and expand welfare programs. Redefining marriage would legislate a new principle that marriage is whatever emotional bond the government says it is.
Redefining marriage does not simply expand the existing understanding of marriage. It rejects the anthropological truth that marriage is based on the complementarity of man and woman, the biological fact that reproduction depends on a man and a woman, and the social reality that children need a mother and a father. Redefining marriage to abandon the norm of male–female sexual complementarity would also make other essential characteristics—such as monogamy, exclusivity, and permanency—optional. Marriage cannot do the work that society needs it to do if these norms are further weakened.
Redefining marriage is also a direct and demonstrable threat to religious freedom because it marginalizes those who affirm marriage as the union of a man and a woman. This is already evident in Massachusetts and Washington, D.C., among other locations.
Concern for the common good requires protecting and strengthening the marriage culture by promoting the truth about marriage.
What Is Marriage?
Marriage exists to bring a man and a woman together as husband and wife to be father and mother to any children their union produces.
At its most basic level, marriage is about attaching a man and a woman to each other as husband and wife to be father and mother to any children their sexual union produces. When a baby is born, there is always a mother nearby: That is a fact of reproductive biology. The question is whether a father will be involved in the life of that child and, if so, for how long. Marriage increases the odds that a man will be committed to both the children that he helps create and to the woman with whom he does so.
Marriage connects people and goods that otherwise tend to fragment. It helps to connect sex with love, men with women, sex with babies, and babies with moms and dads.[1]*Social, cultural, and legal signals and pressures can support or detract from the role of marriage in this regard.
Maggie Gallagher captures this insight with a pithy phrase: “ex makes babies, society needs babies, and children need mothers and fathers.”[2]Connecting sex, babies, and moms and dads is the social function of marriage and helps explain why the government rightly recognizes and addresses this aspect of our social lives. Gallagher develops this idea:
The critical public or “civil” task of marriage is to regulate sexual relationships between men and women in order to reduce the likelihood that children (and their mothers, and society) will face the burdens of fatherlessness, and increase the likelihood that there will be a next generation that will be raised by their mothers and fathers in one family, where both parents are committed to each other and to their children.[3]
Marriage is based on the anthropological truth that men and women are complementary, the biological fact that reproduction depends on a man and a woman, and the social reality that children need a mother and a father.
Marriage is a uniquely comprehensive union. It involves a union of hearts and minds, but also—and distinctively—a bodily union made possible by sexual complementarity. As the act by which a husband and wife make marital love also makes new life, so marriage itself is inherently extended and enriched by family life and calls for all-encompassing commitment that is permanent and exclusive. In short, marriage unites a man and a woman holistically—emotionally and bodily, in acts of conjugal love and in the children such love brings forth—for the whole of life.[4]
Just as the complementarity of a man and a woman is important for the type of union they can form, so too is it important for how they raise children. There is no such thing as “parenting.” There is mothering, and there is fathering, and children do best with both. While men and women are each capable of providing their children with a good upbringing, there are, on average, differences in the ways that mothers and fathers interact with their children and the functional roles that they play.
Dads play particularly important roles in the formation of both their sons and their daughters. As Rutgers University sociologist David Popenoe explains, “The burden of social science evidence supports the idea that gender-differentiated parenting is important for human development and that the contribution of fathers to childrearing is unique and irreplaceable.”[5]*Popenoe concludes:
We should disavow the notion that “mommies can make good daddies,” just as we should disavow the popular notion…that “daddies can make good mommies.”… The two sexes are different to the core, and each is necessary—culturally and biologically—for the optimal development of a human being.[6]