I don't understand either. You know what's kind of funny? This country was started with the idea of freedom. Particularly freedom of religion. That freedom given to religion is what restricts others of freedom.
This analogy may seem irrelevant, but I find it pretty accurate no matter how stupid it seems. Gay marriage is like a food you don't like. You don't like that food, so obviously you would avoid it, yes? Well, why are others restricted to it because them enjoying that food does not effect you in any way.
I really want to know the answer to this question, by the way you're in LGBT so you're probably not going to get answers because mostly everyone here approves.