One also needs to keep in mind for spaces for marginalized in particular are more sensitive than typical because they have to keep their shields up at all times because of how much more likely attacks are. If making them feel like they can safely drop their shields is a goal, then incidents like people posting in an antagonistic and/or harassing manner needs to drop to background radiation levels.
But even after they flee, it won't be enough — the new platform where they took refuge, having become popular, must be stormed. Any room where the marginalized congregate must be filled with the din of hatred. In short, it is not enough for Musk-era Twitter to be Twitter — BlueSky must also become Twitter.
BlueSky is already quite bad like old Twitter, though not like X. It's not filled with Nazis, but it is very bland and corporate with no substance.