Most of them are only doing it to “trigger the libs” (totally different from the alt-right) and a lot of them are LARPers (totally different from the alt-right), so no they can’t stay on one instance, they need an audience to troll properly.

If they actually just cared about socialism they’d be off circlejerking in their own instances about how capitalists are evil and Stalin was a saint, but again that’s not why the majority of them are doing it, so they will keep adding new instances and posting across to anywhere that hasn’t defederated them, because they want to piss as many people off as possible, and talking shit to “liberals” while being “socialists” is the best way to trigger both (American politics) sides.