You know, from time to time, I've gotten to know someone who grew up believing all Americans were awful, basing their entire opinion on experiencing American tourists and/or watching movie and TVs. I remember meeting a South African woman who started a B&B here in the States, and once she got to meet and talk with regular Americans, she absolutely LOVES it here.
Ditto the several experiences my parents had with exchange students - they'd always thought Americans were rude, selfish, arrogant bastards - and then when they live with a real American family for a month or two - or longer - they find they like them a lot. And the friends and neighbors - they like them too.
What they SEE prior to being here - is thinking all Americans are like the *******s they see on TV - or the rich jerks who throw their money around and abuse the hotel and restaurant staff.
Seen this many, many times.