Oh, so you are with the "blame America" crowd? I dispute your theory that we are imperialists. If we were, we would take the oil resources that the West developed for ourselves, but we don't do that, do we? I think we should in some cases.
Uh, please define, "wars of conquest" in your context.
Most of the ill will against us is due to the Leftist propaganda against Western ideals, in my opinion. Actually, we have a long waiting list of people from all over the world clamoring to get in. I think we should let them come, actually. A lot of people in the world still think of us in a positive light, but none of the media outlets will tell that story and neither will Hollywood: our own propaganda machine has been spreading anti-American sentiment for decades.
I know you are likely to go on about the dictators we have supported in the Middle East and I will state my opinion now that the current situation in most of those countries is worse than the situations under the dictators we were backing. Obama switched gears and backed the "Arab Spring" causing instability and the return of savage treatment for all enemies of Islam, such as Christians, women, gays, etc. Some may blame the USA for that but it was a democratic decision made by the citizens of those countries, so they deserve the decrease in liberty just as we do for voting in Obama - twice. Democracy in action. Ain't it pretty?