"Interracial" marriage vs "same sex" marriage

[Weltall]

It took that long primarily because it took that long for most of the racists of the civil rights era to die off in sufficient numbers, to be replaced by people who lived their entire lives acclimated to the idea of interracial marriage. People who grew up in that more tolerant atmosphere were far more likely to end up tolerant of gay marriage. We're approaching the point, I think, where the idea of arbitrary restrictions, in general, will be disregarded.

The homophobes love to suggest that gay marriage will lead to a slippery slope that will also see polygamy, incest, pedophilia and bestiality legalized. I don't accept the latter two, because it's much harder to argue that beings incapable of informed consent can enter into a marriage. But, there really isn't any rational reason to disallow the former two. I think the major factor determining whether or not those two are legalized will primarily be, will there be a sufficient number of people who care enough about it to agitate for their legalization?

That, I don't know, but I don't personally have a problem with either of them being legalized, as long as the arrangements are inclusive and consensual.