All of those "friendly reminder I identify as transethnic taiwanese butthole-kin with 12 head mates and robotic legs uwu" posts you've seen from tumblr are from joke blogs run by antisjws. There are tons of feminists on tumblr but a vast majority of them are just normal teenage girls who actually make some pretty good points. Crazily enough going to the feminism tag on tumblr isnt that much of a trip at all. The only cancerous shit in it is the anti feminists talking about their ass and fighting the good fight against some big strawman tumblr feminist.