I won't speak for myself, but those who I know who don't like LGBT people, mainly say it feels unnatural. They can never really pinpoint it for me, but it typically boils down to that something just tells them that it's weird, or that the whole movement makes them uncomfortable. They make the comparison to a closeted pedo who hasn't done anything wrong. "I'ts not their choice who they're attracted to, but it just feels wrong for someone to like little kids". Of course none of them are going to stone someone to death for being gay, but they tell me they feel uncomfortable when it's forced on them in modern media. I can't say for myself, and I doubt anyone here will be able to either, but I hope this helps answer your question.