I've taken two classes at a major university so that I can get my degree finally. In the most recent class, the teacher has been downright sexist. Crude jokes that come out badly because of his broken-ass english and a horrible sense of what's proper and what's not. I've only gone to class 4 times this semester... the first two classes, and the two subsequent tests. During each of the first two classes I saw a woman get up and leave the classroom after a horribly sexist joke. It may be that I recognize this because I've been in the workforce for several years and have gone through "sexual harassment training" or whatever, but I doubt it. This guy is creepy, and he's outright lewd.
So yeah, I can imagine that women don't want any part of the field if the people training the next generation of workers are this bad.