I must be thinking too hard!

The USA is the only country in the Americas with that name. So why not Statians or Unitedidians? That would confuse people with the United Mexican States.

To prevent further confusion, citians if the USA are referred to as Americans, while the contenent citizens are North American, South American, and people from the Americas.

I would already know about this but I wanted to make a joke, etc.
Anyway, thanks for the info.

Something I learned doing stand up: do an londerable question, and someone will know the answer.