Marriage is not a right and denying it to someone is ONLY discrimination in the eyes of emotional nutjobs. The fact that liberals are so supportive of gay marriage and not the right to bear arms should be an indicator of just how confused they are. It's those overactive emotions I tell ya.
I might be wrong, but I don't think it's entirely nuts to assume that two people can join into any contract that they want (in this case - marriage) given that said contract has absolutely no effect on anyone else.
Regardless of which amendment you feel 'gay' marriage, or any other form of marriage falls under, the larger point is that it's not the governments business what those two people do.
DOMA was as incorrect as the miscegenation laws in previous decades.
Is it your assertion that the Constitution is the final say in all matters? Maybe so, yet...
The Founders put in mechanisms for the Constitution to be flexible for changing times.
Not easily, and not quickly, but the provisions are there.
The Constitution was made to be a living document.
You talk guns and point to the Constitution...great.
Marriage isn't in the Constitution...great.
Space travel and asteroid mining-rights aren't in the Constitution either...should we not address them at all?