I remember how my partner and I basically explained to her centrist dad that, partly thanks to the sabotages of mild social democratic "radical" Corbyn and Bernie, we had discovered, learned about, and embraced anarchism, believing that not just capitalism but also the state needed to be abolished. And her dad said we were basically like Trumpists. This is the frame of reference for a lot of such people. No visionary thinking; just centrism or extremism.