Just as it was in the civil rights and women's rights movements, the church can -- and will -- be a powerful force for shaping that arc. For it is in embracing LGBT people as made in God's image that we fully incarnate God's love.
Fighting for gay marriage would reaffirm the image of Christians as people of warmth and compassion who help make marriages work and maintain romance. Christians would be the advocates of loving families, not their adversaries. How great would that be?
Believe anything you wish to believe. I don't care if you believe in Santa Claus, but the minute you start justifying bigotry, hatred, and violence with your belief you've infringed on the rights of others.