I was born within the United States and I never refer to the country as America. However it’s onerous to provide you with a nationality to make use of for the people who reside here, other than American. I’ve tried USian and United Statesian, however they’re each clunky. Basically the United States of America is a stupid name for a rustic. If North America and South America are really one continent, then shouldn’t Asia, Europe, AND Africa all be one continent as well?