So you say. But they can get an erection and have sex, although they can't ejaculate.
They can wear men's clothing and they can go to the ballgame and belch loudly, they can wear their pants down low under their gut, and they can play poker until 3 in the morning. What else is there?
The y chromosome. I don’t feel any need to encourage this poor person’s delusion. She will always be a “she.”