One of the main forces behind leftism, in addition to its powerful hatred for the West, is profound historical ignorance. Leftist education across the West means that people know the wrong thing or know just a sliver of the right thing, with that sliver managing to be a complete perversion of the whole picture. If you want a visual, check out the classic meme that seemingly shows a despairing child held down by a booted foot on the head, only for the wide-angle to show the child doing it to himself.
