No, you clearly missed my point entirely.

I'm saying that's the same level of geographic knowledge of usual examples of e.g. Germans being more knowledgeable about European countries, so why aren't Americans more knowledgeable about South America? The answer is that there's a lot more to be aware of in America in the first place. America is the size of Europe just on its own. We know plenty of geography in absolute terms, but for us a lot more of it happens to be within our own borders.

Most people in the world don't know about the Darian Gap. You think Brazilians or Argentines all learn about it or something? It's a relatively local thing, and that's fine.

You're claiming that Americans are especially ignorant of world geography compared to other countries. That's just not the case.

In any case, hopefully by now you've learned that calling other people ignorant never goes down well.