“American” is the official English word when referring to people or things from the United States, but it heavily implies that it means either all of North America or all of North and South Americas. Most other languages have different words for American (country) and American (continents). If there were a campaign to replace the word “America” with something else when referring to the US, what would you think of it?
As someone who’s family came through Canada, I’ve always been self-conscious about the term and usually use the more awkward from US, but I think a campaign would be stupid and would likely end up with some PR marketing agency brand. Just call it what you want.
Yeah, I’m not sure I see the point of a campaign per se. When the scope of what I’m talking about is international (or inter-nationality) I try to be specific, but I don’t see “American” going away as shorthand for US citizens among US citizens talking to US citizens.