It's incredibly hard to keep having an open mind, keep trying to figure out "Is this actually constructive criticism or toxic bullshit?" and keep trying to engage in good faith in the face of certain patterns. It's just exhausting. It takes all your time and mental and emotional energy to try to sort it out, which detracts from putting energy into things that will actually advance your career.
You can spend hours and hours wondering "What did he mean by that?" in an exchange that lasted under a minute. And you may never figure it out.
It's vastly easier to just start erring on the side of "You're all just sexist pigs!" Though, unfortunately, that seems to make the problem more intractable and unresolvable, but it makes is a little easier on a day-to-day basis to cope in the face of a situation that is inherently excessively hard to parse and navigate.
So if we lived in a world were the concept of sexism was not as well developed as it is now, at least here in the US, you wouldn't have this internal conflict? Is this not enough reason to not engage in discussion and encourage others (presumably women) not to engage in behavior that keeps sexism at the very forefront of thought?