There is a population of leftists that are beyond reconciliation or even coexistence. The only way forward is some form of secession.
For comic relief, I decided to take a peek at what Bluesky had to say about nostr:npub1pzzrdngrnlufqazx3lfj07k0vfuya6ehfy8q5yv2h8c5e8fxgmxqhxdsr8 this week and…well…let’s just say their brains seem to lack any critical thinking functions whatsoever. 
Discussion
LOL, exactly how does that work?
I don't know. Hard to imagine how, but it seems like something will eventually break. If some extreme far left president is elected after Trump it could get interesting.
If you’re talking a physical separation between people with different political ideologies, that’s kind of ridiculous to imagine. The US has been divided as a country for as long as anyone can remember. Secession didn’t work, either. Now everyone is online, and using more decentralized tools to communicate, so in terms of self-separating, consider Xitter the place where right-leaning NPCs call home, and Bluesky rapidly becoming the home of left-leaning NPCs. I choose to self-separate on Nostr, because I don’t like to argue with boneheads from either side.