Always has felt totally wrong. They have their own name, our ancestors forced another.

I think they prefer to be called Native United States of Americans.

(This is a bad joke, playing on the original topic, don't hate me)

Call them Union Members, it’s what their founding fathers called them

Call it super-continent if it illustates better what I mean. There is a clear intention on referring to your country with the name of the totality of the continent. You know the history