Too much of it, it is a curse- like being Churchill before he got banished and before they begged for him to come back.
I have degrees in Classics (focused on Athenian Democracy and Roman government) & American History & Politics (focus on Constitutional Republican government). I had good teachers, and continue non-stop to self educate in history. It is an addiction. But it leads to consistent madness; the best analogy I can think of is like being in a room full of blind people who also don’t have temperature sensory and the ability to feel pain and trying to convince them the whole room is on fire.
Knowledge is loneliness.
My knowledge of history may fall short of yours, but as to your tagline, I know one American who wouldn’t settle in Greenland- my Dad! He had enough white nights helping establish Thule AFB during the Korean War (Thule however, was definitely preferable to Chosin!)
Hadn't thought of it that way, but it is certainly true. Ignorance of history, economics and human behavior is certainly blindness, however there is still a chance of discovery.
Thus the left creates revisionist history, environmental "science", and Keynesian economics to deepen ignorance should a useful idiot investigate the "facts".