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Well, it depends on how you ask the question, but the complete answer is American nationality and Asian race. With respect to American hegemony, I speak of the end of the nominally undue influence of American culture, which is not a racial term.

I think Asians are too generalized, because Indians and Chinese for example look very different. But i agree with what you say about the American thing. People often assume that the other people are American, sometimes i get We or our when talking about American topics

You're right...Asian is a very broad category. That said, I think if we just talked about people who "look" Asian, and shifted Indians to a different category, then this new Asian demographic would still be nominally dominant.

Because of this, it's funny that people subconsciously assume "Americanism" in their social media discussions, but the whole "America ideology" is a declining one!

Technically they are in Asia, but should be different. Indian , sri lanka, pakistan is one group, and then Chinese, Korean, Japanese another group.

Yes American ideology is declining. I think it has something to do with Asians buying properties and businesses worldwide

You make a good point. There is a lot of history in Asia, and plenty of animosity stemming from centuries of intercultural conflicts that sets Asian peoples apart.

As to American hubris, a lot of that may be cultural indoctrination, as Americans are provided a very American-centric curriculum in primary school, at least. I don't necessarily think that's solely an American trait, as I expect anyone discussing the group of which they are part will use that same kind of expression.

Edit: rereading your comment I now see you meant that Americans assumed the person they were conversing with was an American. Sorry for my misunderstanding.

hi valued-customer, yes lot's of history and different cultures, and the geographical locations , even food, make people look different in long period of time.