My issue with forcing gender pretence compliance is that it is not policing what you say to the person in question, but insisting that your language is policed out of their presence. Like that person is able to control your speech away from them.
Imagine I'm talking to Betty. Betty has a cock and balls but wears womanface. Betty insists I call him she and her. But WHEN do I refer to Betty as her so as not to be rude to him?
"Goodmorning Betty. How are 'her'?"
"Betty, would 'she' like a cup of tea?"
"Betty, did her complete the project she were working on?"
It makes no sense in language.
When speaking to a person you use non specific gendered language. "How are you? Would you like a cup of tea. Have you completed the project you were working on?"
You can call yourself whatever name you like and I'll comply because a name is something chosen and it doesn't matter if it's you or your parents who chose it. Sex is observed though. I am happy to use preferred pronouns to your face, which isn't actually a thing you can do, but I will not be made to play silly games when speaking about them.