Original sentence: Indeed, even the term "Aboriginal" stirs some controversy, as some argue that no people are actually indigenous to North or South America - having immigrated from the old world - some groups were simply first to immigrate
Edited sentence: Indeed, even the term "Aboriginal" stirs some controversy, as some argue that no people are actually indigenous to North or South America - having immigrated from the old world (as every one else has).Some groups were simply first to immigrate