Reminder: America is not a continent. North America and South America are continents.
Not in Latin America, which is where the majority of people in the Western hemisphere live. America is one continent. The the division of it in two and the appropriation of the terms America/American by the U.S. are Anglo-Saxon and Western European practices. Latin Americans don't call U.S. citizens "americanos/as" they call them "estadounidenses," "norteamericanos," "gringos" and/or "yanquis." It's an illogical practice to appropriate the term; it's like calling Native Americans Indians. But, the U.S. is a stubborn, pompous, and ignorant country. I mean, they still are not even using the metric system...
But in this forum we're all speaking American, not Latin American, so it sort of makes sense that we use the American terminology.
As for these being "Anglo-Saxon" and "Western European" practices, check yourself before you wreck yourself, homeslice. You're criticizing us for using the English terminology, but you want people to recognize uniquely Spanish terminology. I know enough English, French, Haitian Creole, German, Turkish, Hebrew to tell you that in all of them, "American", "américain/e", "Ameriken", "AmerikanerIn", "Amerikalı", אמריקאית/אמריקאי by default means "American", not "someone from one of the countries on one of the American continents". That's some uniquely Spanish nonsense as far as I can tell. I asked my friends on gchat and "American" also means "American" in Dutch, Russian, Filipino, Japanese, and Arabic so there's also that.
Give up the ghost, you gotta admit that the Spanish is out of whack with global norms. And maybe Portuguese, too, but in your blind Spanish-supremcy you seems to have left Portuguese out of your list of "Latin American" terms. Spanish isn't the only language of Latin America. Google translate tells me the Portuguese translation of the Spanish term "estadounidenses" is "americano" so, there's that... You can really use whatever term you want in Spanish (and maybe Portuguese), but you should really stop being a dick in English (as well as Arabic, Creole, Dutch, Filipino, French, German, Hebrew, Japanese, and Russian). It's not like a German comes around and tells me "You call those gloves? f**king idiot, call them hand-shoes! Shoes aren't just for your feet, you pompous American."
As for the continental question, Spanish-speakers are sightly less out of touch, but still clearly in the global minority with the American seven-continent systems being the undeniable global majority (thank you China and South Asia, <3):
https://en.wikipedia.org/wiki/Continent#Number_of_continents
The seven-continent model is usually taught in China, India, the Philippines, parts of Western Europe and most English-speaking countries, including Australia and England.
The six-continent combined-Eurasia model is mostly used in Russia, Eastern Europe, and Japan.
The six-continent combined-America model is used in Spanish-speaking countries and in some parts of Europe, including Greece.
7 continents 4 lyfe.
But, the U.S. is a stubborn, pompous, and ignorant country. I mean, they still are not even using the metric system...
At the very least, you've taught us those qualities are not unique to the U.S.