Indian, and the term is "American." We're speaking English - in English we have two separate continents, North and South America, or just "Americas."
Further, no other nation state uses the term "America" in its name. So when people say "American," they mean the USA, not Peru.
So, unless you want to speak Spanish (more than happy to), or Peru changes its name to American Republic of Peru, it's American, not "usian"
>kinda telling
why would I know every single oppressed group. Kinda telling that this is your reaction and kinda telling on your political leanings too when you can't give any other reasonable objections. (See, I can do this too lol - it's a dumb argument).