bitch, asshole

I couldn't imagine calling a woman an asshole, or a prick. In fact there are a long list of insults appropriate only to males.
I think there are a couple insults appropriate only to females like slut, and then a third class like cunt and bitch that are appropriate to both, but with very different implications for men and women.

Isn't "bitch" just "asshole" for girls? If I don't like a woman, is it really worse to call her a bitch than it is for me (or worse yet, a woman!) to call a man an asshole, or a prick? How am I to insult women individually without insulting "women" in general?

this has been another sort of anti-feminist post from the desk of a privileged white male.