"Subscribe to my channel. Contribute to my media career." If any of these people really wanted to help, they wouldn't be thinking of ways to further mire teens in online bullshit.

Also to OP, I do want to stress that people being nominally left-wing and being horrid little misogynists aren't mutually exclusive. I'm not saying that therefore this is a real issue (I don't know the numbers, or where I could even find accurate ones), but that the general tendency of young people to identify as "left" doesn't disqualify them from holding deeply sexist attitudes.

As a historical example, you can read some depressing stuff from female Black Panthers about how some of the men treated them.