GLBTs shouldn't be allowed to marry just like blacks and whites shouldn't be allowed to intermarry and woman shouldn't be allowed to vote or drive.
(I don't see why it's much of an issue... Shouldn't we put more attention towards preventing genocide/starvation/etc than preventing someone from marrying someone just because they're of the same sex? Is it really that offensive if someone you don't even know marries someone of the same sex? If someone's that worried about it for ethical/religious/etc reasons... It's not as if someone else's behavior reflects on you, right? At least as far as I know, anyway
)
((Good lord, look at the abuse of the word 'someone.' Apologies to all Grammar Nazis.
))