Many are, but many are not. Too blanket of a statement.
I have studied a lot of radical feminist books. To be a real feminist you have to hold a low opinion of men. The female defines herself based on an illusion of superiority over men. They are abusive to men.
So, real feminists are lesbians and the heterosexual feminists are not hard core or real feminists, according to the radical cult. Wives and Breeders are often shunned from academics. Lesbianism is the height of feminism - the total rejection of men. They enjoy hurting men.