You don't know what I care about, but here's a hint: freedom, governmental power restricted, and people not sticking their nose in other people's decisions; not imposing my religious beliefs on everyone else.
Is your God the God of the Bible? If so, what do you have to say about the nations He judged because of their moral decisions? If not, what does your God say about it...how do you know what He thinks? And shouldn't the history of Rome and Greece give you pause?
not imposing my religious beliefs on everyone else.
If opposing gay marriage is a religious belief, why was it that no atheist state ever legalized it? Why has it been illegal in states run by Christians, Jews, Muslims, Shintoists, Buddhists, animists, pagans and atheists?
BTW, if you really think the whole "live and let live" thing is reasonable in this context, you need to see post 189. Avoiding demographic suicide is not sticking one's nose in other people's decisions.