I never met a Brazilian that cares about it tho. There was a big national uproar a few decades ago when some Japanese company tried to patent the use of the Açaí fruit and trademark.
now about America and Americans. South Americans and North Americans are as much "Americans" as Northern and Southern Europeans are Europeans. Calling themselves THE Americans and the rest latinos (what do they call Canadians? I guess just Canadians) lowers our history and culture. North-Americans or US-Americans or whatever-Americans shouldn't be the ones defining who is American, who is Latino-American, who is Native-American, Afro-American. Not surprising, there isn't a Euro-American tag.