It's funny you should say that, because in fact I have a gay sister who is extremely active in LGBTQ+ mental health as a licensed psychologist, a brother who is happily post-hrt trans, and am dating a trans male. No, I think you're just an asshole. :)
Most of the gays I know don't appreciate having their identity wielded as an insult. Sounds like you need to work on some of that ingrained homophobia.