Just because someone dislikes gays doesn't mean they're homophobic. Homophobia is a fear or homosexuality, but some people may just dislike gays because they find them irritating for whatever reason.

Also, some people find that idea of gay sex disgusting, that's doesn't make someone homophobic, just in the same way that a gay person finding heterosexual sex disgusting doesn't mean they have a problem with heterosexuals, they just find the sexual activity unappealing to them.

This idea that you have to approve of what someone does or you have a fear of them is just ridiculous.