Perhaps one major factor is religion. If you consider the amount of people who belong to religious groups and clan together as to enforce social policies and claim that both church and state are separate, but hide the fact that it's influence is just the same on the social system... such people are considered to be fanatical in nature; not to say that all religious types are extreme and dangerous.
The two biggest religions are: Christian & Islamic
Sometime I wounder if Christianity was created to stop the spread of the Islam as to create more peaceful social structures... and to balance out the early world as to get away from clan/religious warfare mindset.
So I think it is reasonable and plossible when it comes to US foreign policies to conclude that difference in religious values seem to drive semi-political/religous social agendas world wide and that is whats going on in the mid east and is just more noticeable...
So to answer your question why does everyone hate the US well perhaps its just that the tolerances are different.
Perhaps the US just has more cute girls?
Later,
.