secretagentyid:
Do you mean 35b? There he says ???? ???????? and ?????. Though I don’t know of a Rashi that says ???? ???? ??.
Either way, you’re bringing a Rashi against explicit pesukim, an explicit Pirkei D’rabbi Eliezer, an explicit Gemara, and an explicit Rosh.
Regarding the proof from Yevamos, I was assuming that if he’s not a man then he is a woman. He wouldn’t be a child just because he’s not married. And his bones would only melt if he’s past 20.