Or to put it another way, nobody says "I'm a transphysician. I feel like and identify with being a doctor. I want to wear a white coat and have people put "MD" after my name. This makes me a doctor, even though I don't know how to treat sick people."

But a lot of people want the status benefits of being a doctor without having to do the hard work of going throw med school or even knowing how to heal people. Come to think of it, this isn't a bad analogy of transwomen. A man want the status and attention that women get, especially in nerd or SJW circles. Furthermore, these days by declaring himself a "transwoman" he even becomes more special then ordinary women.