Meanwhile, women in blue collar environments joke about men staring at their breasts, butts, and whatever else, engage in the same sort of rude banter as men, and are generally accepted as strong and capable. At least that is what I have seen at the railroad where my mother works, where women are not demeaned by their coworkers and do not feel that their work environmental is "hostile." Jokes about body parts are a bit immature but they come with the territory in certain lines of work -- and as long as both male and female anatomy get equal time, I do not think one can make a claim that there is some kind of sexism.

Joking about bodies and sex with coworkers you know well is not the same thing as a product built around the concept of staring (presumably lasciviously) at the boobs of strangers.

Basically, it's a question of participation vs. objectification--of being in on the joke vs. being the butt of the joke.

Whose side would Freud be on? See: 'Partial Object', particularly its canonical example.

(My point here is the term, not the man.)