They’re not entirely wrong, of course, but they’re really stretching this simple stereotype into some deep difference in psychologies and assigning it to this “concept of a marketplace of idea vs. rationality and enlightenment” oversimplification. Honestly to a European person who’s lived in America, they mainly sound like an American who’s angry with the state of the US and who’ve completely idealized Europe as a result. Which would be fine if they hadn’t worded what amounts to an overindulged shower thought in such a peremptory fashion.