Yeah, but British is a thing, and everyone knows about it (the British made damn well sure, back when they were the main global bully)… American, on the other hand, doesn’t work, because it refers to the whole damn continent, not just the USA… so if we want to refer to the citizens of the US Yankee / Yank is about the only option we have; not the best, maybe, but probably the least worst.
I don’t suck as much at programming as I suck at everything else.