It would be like Russians traveling to America, but making no distinction between Canada and Mexico. Except that Russians don't do that. This is an entirely and purely American problem.
This was not an analogy. It was an additional example to add to the parent's observation. As well as to dispute that it had anything to do with people from countries with big land mass.
There are clueless people from many places, not just the US. Europeans refer to Asia as Asia. Is that a problem too?