Here's my thought.

Christians are so opposed to gay marriage because if they were legal, then another piece of the Bible would be de-legitimized in America, something Christians don't want to happen any more than it already has.

Look at some of the other religiously justifiable things that we as a society no longer partake in:

Polygamy
Slavery
Women's servitude to men

The problem is, many of the Bible's principles contradict our modern way of life.

Like it or not, the Bible says you can stone your new wife if she is not a virgin or your children if they are disobedient, that women must submit to their husbands and that rape is acceptable during war and conquering.

In order to make a more harmonious society, we simply do not allow these things to happen, despite being justifiable in the Bible.

When Christians come along and say "The Bible says that homosexuals are wrong and will burn in Hell!" but turn right around and follow up with "But that slavery stuff, stoning your children, raping, that's all Old Testament stuff, so it doesn't count" they basically point out a flawed and obvious hypocrisy in our faith.

Especially when you consider that Jesus said nothing on homosexuality. Literally, he didn't touch it. Since we, as Christians, take our cue from the New Testament and the teachings of Jesus, because all that Old Testament stuff doesn't count after Jesus came along anyway, right?, we look to his words for guidance on the issue and there's just nothing there.

It's been reported that there are more openly atheist people in the U.S. than ever before. It's also been reported that despite the fact many young identify in the Christian-faith, they simply do not attend worship services.

Christianity is in crisis, but instead of embracing Christ's message of love, its leaders continue to criticize and demonize the gay community, especially here in the United States.

I fear the longer that Christian leaders continue this fight, the more out-of-touch our faith will continue to look.