I think I remember years ago seeing a comment somewhere that perfectly descriped this behavior (probably :reddit-logo:):
It came from a story of a pastor or something that was famous for hating gay people and was later caught having gay sex at an airport or something. Basically the reason people that are obsessed with hating a group like gay people is because they are constantly thinking about gay sex. They can't get it out of their heads because it makes them horny but they are taught to hate it so they are constantly :frothingfash: about it and sound like lunatics.
No surprise that people that are constantly hating trans people are because they can't stop thinking about how hot they are.