“MARRIAGE RESPONDS TO THE UNIVERSAL FEAR THAT A LONELY PERSON MIGHT CALL OUT ONLY TO FIND NO ONE THERE.”So why not allow marriage to 9-year-olds? Good enough for Mohammed! And Roe v. Wade was such a wonderful effect on American politics. The difference is that Christianity is pretty much dead in America because so many kids learned by example to forgive your enemies, but not your spouse.
As this comment at Instapundit points out:
Adopting a dog from the pound responds to the universal fear that a lonely person might call out only to find no one there.
Look, the line applies to marriage, and it's lovely, in its way. It also has nothing to do with constitutional law. And it also explains why no-fault divorce is not viewed as the social disaster it has become.