No, Americans are just as prone as the other anglo countries, there's just more of them. If we start delving into other languages, then things immediately go downhill. For example, I speak Arabic and I would say that at least 80% believe in at least 1 batshit crazy conspiracy theory. Why? It's because the vast majority of Arabs consume their information from Facebook and a good chunk of that information comes from state owned propaganda outlets. Just a 2 minute scroll on my father's Facebook, I saw the following conspiracies:
Israel is created by the kufar to sin against allah
India is on the brink of becoming majority muslim
Incest, pedophilia, and zoophilia are common in the West because they don't have islamic morals
Russia is fighting NATO and winning
Hamas is beating Israel so bad that Israel is on the brink of collapse
Eating Pork will slowly turn your heart inside out