Ender, you're going off the deep end a little bit here. We should have nipped this talk of weird fetishism in the bud at the first mention. It's unreasonable, nobody is going to champion the idea of legalized goat marriage/whatever. For one, marriage requires two consenting parties in American culture and it's legally established that animals cannot give consent. If it happens, we're talking hundreds of years from now in a remarkably more liberal society.
Your defense of the tradition and sanctity of marriage is very much a religious argument. Sanctity (which I'm pretty sure you've used multiple times, but correct me if I'm wrong) is itself a religious term used to describe things that are both holy and immutable. So while your motivations may not be based in religion, your argument is. You might not be applying whatever branch of Christianity you follow - at least not directly - but you are in essence forming your own personal religious canon to support your position.
The tradition of institutional marriage is both weak and ill-defined. And it's not the least bit sacrosanct - you walk into a courthouse and sign some **** with a witness and a notary present.
Nobody is asking ANY religion to accept gay marriage, just state governments who have already bastardized the institution hundreds of years ago.
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