I can see your guys' views too. Virtually every country I'm sure has had its dark points in history, I just feel that America's relatively short history has had few good points. American history goes as follows:
1. We found our own country because we don't feel like paying a few taxes that we fairly should have payed to the British government.
2. Age of slavery and expansion (which means genocide of native americans)
3. Civil War, followed by a period with not much going on
4. Industrial revolution, where people were made to work insane hours doing mundane tasks (to be fair I know that most European nations went through this)
5. WW1, great depression, WW2, internationally illegal annexation of Hawaii -- it was realized as a singular entity ruled by its queen, and we promised that we wouldn't take them over. Until one day we just did.
6. African Americans finally get all the rights that caucasians have
7. Modern age, good in how the country is prosperous but bad in other cultural areas. I.e. how we sent soldiers to Vietnam to have them come back to be harassed by people against the war, and the rise of illegal drug use (which I'm quite sure Americans use a lot more than other developed countries)
The point is that at almost every point in history America was doing something to deserve being disliked.
I can't talk about people outside of my city, that's true, and it is pretty silly for me to think that everyone in the country is like everyone I've met. Perhaps "idiot" was the wrong word to use. No matter what you argue on the topic, it's going to be groundless. I've heard both good and bad statistics about the education system compared to other developed countries. Here's some from Wikipedia:
The country has a reading literacy rate at 98% of the population over age 15, while ranking below average in science and mathematics understanding compared to other developed countries. In 2008, there was a 77% graduation rate from high school, below that of most developed countries.
To be fair I know that there are also good statistics on the same page, but nonetheless the entire argument is based on opinion.
It's also true what you say about opposition and looking at it from the perspectives of the people at the time. I'm a product of the modern era so I've been raised thinking that all races, sexes, etc. are equal. But since they were all raised being taught that Native Americans etc. are inferior, I can see why they'd treat them poorly, but not completely wipe them out. Anyways I don't approve of any of the racist things that have occurred in American history.
As for food... I live in a capitalist country, dangit, I shouldn't have to grow my own food to know that it's real food. The FDA refuses to make genetically modified labels mandatory despite most other developed countries requiring them. I know that it's one of the lesser arguments but it's one that's more important to me.