>>2608466In my experience it's because they get away with doing it online, and loud, highly visible RL movements like modern feminism means they think it's ok to judge/jury/executioner anyone they perceive as too white, male or CIS for their likings.
The only reason it persists is because they get away with it now that nobody in their right mind smacks a bitch, no matter how outrageous they get, and have not only the RL sisterhood, but the online fanatics to reinforce their shitty behaviour and bullshit perceptions.