Everyone that isn't fash, but we should take our time to make sure we don't completely implode. Let's join just lemmygrad for, idk, a few days with an announcement reminding people to play nice with our comrades, then branch out to smaller commie instances and then push rightward (in terms of the leaning of cites we federated with) until we have all the non-fash (non-criminal/loli/snuff/etc) instances.
It's my impression that even federating with a porn instance creates legal liability, but I think that's a different topic.
People are viewing our sites culture as fragile. That is false. It can be killed if we tremendously fuck up, but our history on cth proves that it is a vector of infection at least as much as it is a victim. The libs have more to worry about from our culture than we do theirs.