then one should strive to build solidarity in their local communities

There's this really notorious wokescold in my local organizing community who joins EVERY leftist space and fractures it. I stopped being friends with them after discovering they were trying to blackmail and defraud a local LGBT charity. Although they've been banned from a lot of organizing groups, their method of aggression is to frame themselves as a righteously indignant victim, so it takes a really long time to be able to effectively call them out on their behavior. Their complaints about other organizers would, if repeated by back to a third party who didn't know the context, seem reasonable or sympathetic.

I thought they were making all these accusations due to past trauma or mental illness, and I was already distancing myself from them when I found out about the blackmail. But this wasn't just one person. This is a Type of Person who is allowed to exist unquestioned in most Leftist communities.

Meanwhile, a chapter of one local organizing group has sexual assault prevention bylaws which were written by an alleged serial sex pest or alleged rapist, depending on which victim story you believe. Said individual has allegedly convinced multiple formerly homeless trans women, some decades younger than themselves, into cohabiting with them in their large estate home. After these bylaws were published, most female-born people left the organization, leaving only male-born people and very early transition transfems (who were promptly taken advantage of, allegedly).

The best option in that situation may be, loathe as I am to say it, Reddit.

Um...no? Not only is it full of bots and 4chan psyops but it's a toxic environment even if none of those things were true. That's aside from the fact that Reddit is full of violent transphobia.

There is no Leftist party or organizing space. Not for lack of trying, but you've got to be willing to critically think in order to keep these communities alive.