[dave_sullivan]

Interracial marriage was certainly illegal for a while and anyone arguing that it should have stayed that way would probably be deemed a racist, right?

If marriage is supposed to have something to do with love (which hasn't always been the case historically), saying that someone can't marry another person they love because of their race is a racist law. Given such a law, you could say "No one has the right to marry someone of another race, it's not just black people!" That would be missing the point.

Saying someone can't marry another person they love because of their sexual orientation is almost exactly the same thing.