In the past, when gays were very flamboyant as drag queens or as leather queens or whatever, that just amused people. And most of the people that come and watch the gay Halloween parade, where all those excesses are on display, those are straight families, and they think it's funny. But what people don't think is so funny is when two middle-aged lawyers who are married to each other move in next door to you and your wife and they have adopted a Korean girl and they want to send her to school with your children and they want to socialize with you and share a drink over the backyard fence. That creeps people out, especially Christians.
Though why should Christians be creeped out by same-sex commitments?