rbanffy parent
I don't hear it being called "America" here in Ireland. The only place I hear it is in the US, which is how I call it.
If somebody says "America" to you in Ireland, are you confused about what they are talking about? That's the difference.
I’ll immediately know I’m talking to someone from the US. It’s a bit like someone saying the hood of a car and we understanding they are referring to the bonnet. We don’t call it “hood” here, or, I suspect, anywhere else in the English speaking world.