All of the ones of size block us to my knowledge. Even the piracy one which went out of their way to state they're against blocking other instances unless they cross way over the line blocked us almost right away despite the fact we have "relevant communities" which they said was a good condition for keeping federation (we literally have a left-piracy community here and many of the people on /c/movies openly talk about their alternatives to streaming).

The liberals decry us for "hate speech" though they can't ever say what of. And of course simply the thought-terminating screech of "tankies" which instantly shuts down any further discourse. The anarchists and other CIA-compatible left who make up the only other major left instances of course despise us.

Hilarious to see at least two instances with rules that state all ideologies are allowed oh but not tankies. Implying of course fascists are welcome but not us. Not surprising.

We may well end up far more isolated than we ever were on reddit, silently blocked by nearly every major instance, no capitalist algorithms mindlessly shoving us in the faces of liberals for rage engagement, just all of us here siloed away. The flip side is we won't have liberals invading us but the downside is even less exposure than before and people will have to create a separate account if they want to interact with literally any other sizeable lemmy instance because they all block us. Which means less chance to spread our ideas. It's a real dual edged sword. Reddit itself had its problems but it did develop in the later years tools which meant:

1. We were mindlessly shoved into liberal feeds thus gaining exposure.
2. Single account could be used so we could post factual rebukes to imperialist propaganda on /r/news or whatever and people who liked it could click the profile, see you post in /r/genzedong and start hanging out there and realize we have some good points.
3. Actual decent tools to prevent brigading, shut down or shadowban sockpuppets of accounts banned from a sub, etc which meant though mods had to do banning people couldn't just roll a new account. So we could reach out but reddit's tools also protected us.

Of course since Ukraine all the major subs have been under lock and key and posting anything anti-imperialist is a quick trip to ban-town after many downvotes so perhaps the ideal has been gone for a year now anyways.