It's not transphobic though. I have no problem with men dressing as ladies. To each his own. Just don't force me to pretend you are a woman.
Nobody's forcing you to pretend anything. We are expecting you to accede to reality. Trans women are not men dressing as ladies. They are women. You should treat them as women. Because you really, really don't know better than doctors, psychologists, neurologists, and others who have established the objective facts of this issue, and who have established broad and durable consensus that trans women are women. You'll have to justify dehumanizing, harassing, and denying trans women their rights some other way.