I'm a woman, but I've been a sexist, too.
I've had a few conversations with people who are horrified: who tell me my work is demeaning, is sexist, is negative.
If I have any sexist feelings they are aimed at men: I hate manly men.
Feminism justified female 'victim power' by convincing the world that we lived in a sexist, male-dominated, and patriarchal world.
To suggest things may be going on in our brains that we aren't fully conscious of, that we unknowingly make classist, sexist and racist presumptions... Well, there just aren't many comfortable ways to take that. And in the face of discomfort comes the mask of defence.
I dug up some old John Buscema 'Conan' comics. Man, when Alfredo Alcala was inking, that was some of the most beautiful black and white comic art ever published. The stories are good, too, though early '70s comics based on Conan is a festival of sexist, racist stereotypes.