[graboidhunter]

A similar aspect is the replacement of American with US Citizen. This would exclude American Samoans who are non-citizen nationals of the United States.

[jjtheblunt]

Canadians, Mexicans, ... , Argentinians are all geographically in the Americas.

Perhaps that one is just about being geographically precise?

[gnicholas]

This is a fair point. But there's no adjective (in English) for a person or thing that is from the United States. In Spanish they use the word estadounidense for this, but I can't think of an easily pronounceable analog in English. It would be handy to have!

[jjtheblunt]

Yankee?

[readthenotes1]

That would offend many people in the southeastern United States

[jjtheblunt]

true. i think Yanks is common though for overseas referal to US citizens, since they don't bother honoring the confederacy or something like that.

[gnicholas]

Most of the online dictionaries I checked showed that "Yankee" is a derogatory or possibly offensive word, including in British English. This is not a purely domestic (US-based) connotation.

[tivert]

> Perhaps that one is just about being geographically precise?

But the serious issue with that is that it denies an entire nationality their native endonym.