There is a very distinct different between "banning" something and not allowing it in the first place. Marriage is traditionally the (largely religious) ceremonial union between a man and a woman. You are seeking to ALLOW something, not to BAN something.
As I said in the other thread, the more appropriate example would be, advocating government mandate that all kosher food include pork or pork byproducts. Allowing such a regulation, would be a direct contradiction of religious practice and exercise. Now, anyone can legally consume kosher food, you don't have to be Jewish, but you can't mandate kosher food include pork, because that violates the 'religious sanctity' of kosher food. It doesn't matter how many people would like to eat kosher pork ribs, it's an oxymoron! Just like "gay marriage" is an oxymoron. MORON!
Again you are wrong, because noone is trying to say that all marriage should include a gay person.
In Connectuct and other places you would be seeking to ban it.
Marriage has traditionally been an ownership agreement for men to have ownership over a woman and/or several women, that is traditional biblical marriage.