[gjm11]

See http://www.patheos.com/blogs/slacktivist/2012/06/11/you-cant... for some commentary on pretty much exactly your position, from a Christian who doesn't oppose same-sex marriage.

Basic point #1: If forbidding people to marry others of the same sex is unkind, unjust, or whatever, then it doesn't become any less so when the person doing it says "my religion told me to do it".

Basic point #2: If forbidding people to marry others of the same sex is unkind, unjust, or whatever, then those who campaign against the prohibition don't need to -- and generally don't -- do it on the basis that the people on the other side are homophobes and bigots. This isn't about the character of the opponents of same-sex marriage, it's about their actions, and if your actions are unkind, unjust, etc., then once again they really don't become any less so merely because you're a nice person underneath.