He grew up poor and depreived because he stole all his lunch money. That's why he hates us.
Oh, wait a minute. he's a billionarire because of Western investment in Saudi Arabia. never mind.
Didn't you argue that bin Ladin attacked us out of 'envy'? (Glad to see you now recognize his financial wealth already dominates most of 'us'. Interesting concept of 'envy' you have.)
In any case, he's a billionaire because he's family is, what, the 2nd richest family in Saudia Arabia behind the Royal family?
So..I don't think it has anything to do with his 'lunch money'.
More likely, it has to do with the beliefs of his countrymen and himself - which seem to be far more fundamental than that the Royal family. He might believe, for instance, that if the US wasn't backing the Royal family, he would be in charge and run things as Allah wanted.
(Of course, the US backs the Royal family because they do things as the US wants and not as how Allah wants. ;-) But that's a different story.)
As for my general allegation - Panama, Iran, Philippines, Nicaragua, Cuba....all countries where the US backed leaders that were robbing/killing their people blind. (and that's off the top of m' head!)