if I had to try and come up with solutions: I wouldn't say "stay off social media". You'll always have dissonance like Aks said. It's important, imo, to be "calling out" condescending, hypocritical, straw manning, dickheaded, and other infuriating modes of communication in the realm of feminism (from all sides) - just as important as "calling out" the sexist/racist shit (imo). I know you've heard that message already and your response has been "the feminists in my spaces DO condemn that kind of behavior" but the thing is, only other feminists are seeing it. I disagree with this personally, but a LOT of people against feminism want to talk about how hypocritical it is to not be targeting sexism against men - it'd be a good move, strategically, to listen to that and come up with creative ways to communicate to those people
As for "what to do" past social media... I'm not involved at all in actual feminist things but if I was I'd definitely be very adaptable. I think that's key for success anywhere, adaptability. I'd go find forums/places that are typically misogynistic or have other traits that I'm unfamiliar in dealing with. I'd post some things there - obviously get flamed to kingdom come, wait a few weeks, go back, and try the SAME info told in another way (I'd be learning how to structure the argument and I'd be learning about how certain people think about certain things, ie, evolving my understanding). I'd do the same in person and become my own leader. I'd spend my days understanding "the opposite sides" and focus all of my attention on being able to convince/inspire THOSE people better than anyone else. I'd do ads &/or "discussion/callouts" like these in the comment sections of the uber popular lol@feminist-overreaction articles because THOSE articles are the ones where my target audience is looking at
Basically, I'd focus on listening to and talking to NOT feminists