US Americans seem to refer to themselves as “Americans” a lot on social media. Or they refer to themselves as “the world” like in “this icecream is the best in the world” (without having visited any other country for a significant time to be able to compare). In Europe, US Americans are referred to by different names: the popular „yanks“, the German “Amis” (die spinnen doch, die Amis), depends on the country. The prevalence of new names is increasing rapidly, e.g. Trumpists, US twerks, dropkicks.
US Americans seem to refer to themselves as “Americans” a lot on social media. Or they refer to themselves as “the world” like in “this icecream is the best in the world” (without having visited any other country for a significant time to be able to compare). In Europe, US Americans are referred to by different names: the popular „yanks“, the German “Amis” (die spinnen doch, die Amis), depends on the country. The prevalence of new names is increasing rapidly, e.g. Trumpists, US twerks, dropkicks.
There isn’t really a better demonym, and certainly none in common usage… USians? US-American (as you mentioned)?
https://en.wikipedia.org/wiki/Demonyms_for_the_United_States