At a pre-protest meeting of a cause I wanted to support, I noticed that the organizer had on their desktop background a kind of propagandistic poster of Mao lea

At a pre-protest meeting of a cause I wanted to support, I noticed that the organizer had on their desktop background a kind of propagandistic poster of Mao leading the cultural revolution. Keep in mind, this is in the USA. I'm no expert in world history by any means, but the level of ignorance is astounding.