The problem is that the USA is still doing this kind of stuff. WW2 was beyond most living people’s memory, but the Vietnam War, Iraq war, the war in Libya, their attempted coups in Venezuela and interference in Bolivia, their support of Saudi Arabia’s wars in Yemen, support of religious fighters who became Taliban in Afghanistan, and support of Israel’s genocide is all either within most people’s living memory or ongoing right now. We love roaming around the world messing in other people’s business lol.