I read a biography of a Brazilian guy who lived in France during the late 19th century/early 20th century. Everyone in Europe called him an American, and he referred to himself an American when he was contrasting Brazil and France. At one point he went off about how hopeful he was about new plane tech coming out, because it would help “unite Americans across our various countries.” However, I think it’s fallen out of fashion to talk this way in recent years, partially because of USA supremacy, which is I think why people are salty about it.