I don't blame them for personally considering, reflecting on it, and adopting a view of women that permits sexism. I think the culture is still deeply sexist. I think that's the default position. I think they were just aping the world around them, unthinkingly.

I do blame them for not paying attention to all the women in the world saying "look guys there is a problem that we are experiencing," but you know what? That's part of the sexist worldview again!

Dismiss the woman, she's just a hysterical baby, whatever, do anything but listen because you might be made temporarily uncomfortable as you realize you've been part of the problem, and need to change your thinking and behaviors if you want to make the world more just.

I fault them for being shallow, unthinking people, but that's a big part of the human condition. :/