Some good points

The Marriage Debate: A Few Last Thoughts
By Maggie Gallagher
October 21, 2005

Every society needs some social institution that channels the swirling erotic energies of young men and women towards each other, and towards generativity both in the negative sense (avoiding unwed childbearing) and the positive sense (encouraging babies). You need some way to tell men (and women) that fathers matter. In absence of some such powerful social institution, children suffer enormously, communities and societies are burdened with all kind of costs, government gets more deeply and intrusively involved in directing the details of family life. And yes, if the social institution weakens enough, the actual future of the society itself is threatened.

Sex makes babies. Society needs babies. Babies need mothers and fathers. This is the heart of marriage as a universal human idea.

SSM advocates instead demand we reshape this institution in law to be more equally affirming of adults' diverse intimacy needs. That is some people's idea of the great moral crusade of our time. Here's mine:

Children have a right to a society that respects their deep, passionate longing for a mother and a father; one that calls on adults to make significant sacrifices to satisfy this longing.

In the middle of a crisis of fatherlessness of unprecedented proportions, proposing to conduct this kind of legal experiment on marriage is not reasonable. It is not kind; it is not compassionate and it is not remotely just.

Read the entire thing here.