It funny you bring up r/conservatism. It use to be a fairly big sub and far more moderate until Trump got into power. But if you had anything bad to say about Trump, banned.

Now it is just an echo chamber with few members. Go there and given day and only a few posts with up vote above 100. Really mostly a bunch of pathetic people since the moderate conservatives left.

Lemmy can be a bit this way but on the opposite spectrum.