Someone will probably downvote you for making the irrelevant mistake saying US vs UK, but your point is absolutely correct that “America” is colloquially the na

Someone will probably downvote you for making the irrelevant mistake saying US vs UK, but your point is absolutely correct that “America” is colloquially the name of the USA, not a continent or set of continents, in both US and UK English. I suspect OP knows this, and is fighting a battle to try to change how Americans speak their own language — it’s not rare, in my experience, for people in other countries of the Americas to be annoyed by this usage.