I don't think the majority of the people here believe that America is made up entirely of fat idiots, but it is far from a perfect nation and as Americans the rest of the world would like to see you admit this.
I will quite happily admit that England is far from perfect (there are things, politically and socially that really piss me off), and I think this may be the difference between the general (stereotypical?) European mentality and the American one. Maybe it is because you guys get a real bashing in the international community, but by reacting so defensively, you do indicate to people that you are one of stereotypical Americans.
As i said above, we know that not all of America is made of Hollywood etc. A few days ago I went to see a very cool American movie called Little Miss Sunshine, which was a great film and shows what America is capable of producing, and it's not on its own in this respect.
Peace
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