Reagan removed all but American history (according to himself) and World History (that affected the US so very little real World History) first from the Californian public school curriculum and then the entire nation's school curriculum. I don't think Modern European History was taught in the U.S. in most schools at all. Certainly Middle Eastern History has never been part of the curriculum. So we have at least five generations who know very little history and most of that comes from B-grade films Reagan could remember being in (as though they actually happened as written in his scripts) despite having active Alzheimer's. He also removed the arts and dumbed down literature where you learn empathy.

Treason has high costs indeed. Trump is not the first president to dismantle our democracy, such as it was at the time.