I defederated months ago for exactly why you described. Night and day difference in how enjoyable Lemmy can be.
Like, yes, capitalism is failing us. But jumping into every comment thread and shutting down every conversation that's not advocating for the complete and utter destruction of the current economic model is exhausting. And that's the least toxic reason I chose to block that instance.
At first, I did miss some big FOSS communities that were there, but over time, similar communities elsewhere became more active. Good riddance.