No he goes out of his way to being up gender and conflate sex and gender to push his transphobic agenda, like you're doing right now too. Gender isn't relevant when discussing gametes but he specifically goes out of his way to conflate gender and sex because he's a transphobic pushing an agenda. He's not respected and generally fringe in his field because he uses junk science to push right wing culture war bullshit. And on top of it all an evolutionary biologist is in no way an expert on anything gender related what with gender having nothing to do with evolutionary biology which again doubles down that he and you are pushing a bigot agenda. Fuck off bigot. Gamete differentiation in mammals is not in any way relevant to any discussion on gender, but you know that because you're here in bad faith to be transphobic. And all this because you right wing chuds are afraid to admit you're attracted to chicks with dicks.