Wait . . . so it hasn't even happened yet, and he's already a she?
Am I allowed to declare myself a girl and demand that everyone refer to me as "she" and "her," despite all physical, genetic, and psychological evidence to the contrary?
probably.
I knew someone who felt she was Native American, despite a pristine genealogy of Scots-Irish-English. No one contradicted her self-claimed *woman of color* category. She was very fair with curly black hair and green eyes, BTW.