What issues does using she/her pronouns for a man that passes as a woman, or he/him pronouns for a woman that passes as a man lead to?(self)
He doesn't pass for a woman. You might be confused by him being mixed race, but something about him looks... off I guess you could say. Like something is wrong with his face. And that's with makeup and in posed/filtered pictures. I imagine in real life it would be even more noticeable.
Anyway, this article goes into some of the problems using she/her for males can cause. https://fairplayforwomen.com/pronouns/
