There’s nothing to be reminded of. English has a word to describe North and South America together (“the Americas”). Other languages have different words for the same concept.

It’s like reminding someone they shouldn’t say “bicycle” but should instead say “fahrrad”.

The USAians are largely seemingly already convinced the name of their country starts with an A, those that live elsewhere generally have better geography chops, so you're correct - it's unlikely any minds will change.