It's rude to judge someone on what turns them on.
Tom's friend is sexually attracted to having sex with trans women.
Tom wants to comment on his friend's sexuality.
Tom tells his friend that he's okay with whoever he decides to have sex with.
Tom tells his friend that he should just admit that he's gay.
Tom's friend feels glad that Tom doesn't judge him for what he's attracted to.
Tom's friend feels insulted since he doesn't identify as gay.