USian here, and totally agree. The willful ignorance is stunning to behold.

But help me with my potential ignorance here - is this meme also suggesting that ordinary citizens of other developed countries know about these things? Do high school history and social studies classes have a day or a week that discuss US imperialism & shady dealings of recent decades?

My impression has always been that people in other countries read about this awful shit in the same places I do online, and that the differences in mainstream knowledge are about much more basic stuff like coal and climate change being bad while healthcare is good.