While I don't like the idea, I'm not seeing gay civil unions posing an immediate threat to people. You're opening a door to a standard for ignoring the Constituion and the separation of authority that's entirely too subjective to suit me.
Gay marriage is an immediate threat to themselves, and done on a public scale.
Because it’s a public operation, the govt has the authority to intervene.
The government officially sanctioning sodomite “weddings” doesn’t count as “big government?” Why is it that you “libertarians” are so intent on seeing to it that the government has the power to officially endorse the revolting deviant crimes against nature performed by sodomite perverts? Don’t libertarians usually want the government not to do things? But in this case you want them to be able to do something really sick, while conservatives are fighting to prevent the government from doing something. I guess in this case it’s we conservatives who are the real libertarians, while the “sodomy is a god-given right” crowd are determined to see that big government have the power to officially endorse homosexuality.