Keeping in mind that “knowing and believing what they do” is itself a perilous notion because one of them might be a “Post-Madrid 1933 purple throated” Marxist while another might be a “Modernist new path” Marxist (I made those terms up). I mean I know “lol factions” is an old discussion with the farthest left, but they can’t even agree with each other.
My wife and I have a saying we find ourselves using far, FAR too often: “Conservatism lurks in the most unexpected places…”