This has nothing to do with Mitt. I'm saying that the cause is lost, you can't even argue against gay marriage anymore without being called a bigot. According to Gallup, 53% of the country now favors gay marriage, and the younger the voters are, the more liberal they are on the issue.
Personally, I'd rather the conservative movement focus on opposing gay adoptions, but stunningly, people seem even less opposed to that than gay marriage.
Why should two people of the same gender be denied the right to raise a child just because of their sexual orientation? Plus Republicans should be supporting gay adoption. If the party is pro-family, it should be promoting more people having and raising children.