Ta-Nehisi Coates states this well:
If someone wants to give me a reason why gay people shouldn’t be able to marry that doesn’t, at its root, boil down to “yuck,” I guess I’d love to hear it. But really that isn’t the point. I’ve always maintained that you don’t have to like black people to do the right thing. Same thing here. I’m not very interested in folks’s homophobia. I’m interested in why they think they should be in the business of dictating terms of love to two consenting adults.
Well said. There’s a tendency to equate equality with acceptance. But equality isn’t acceptance. It’s simply an admission that you should practice your bigotry in the privacy of your own home rather than writing it up as an enforceable statute.