Ah yes, the old "the USA is responsible for despots everywhere" argument. I'm curious... please cite the country that has this spotless record on human rights, and has altruistically advanced such rights everywhere, regardless of their own interest? Obviously any country in Europe, Russia, China, Japan, etc are out. So I'm waiting with bated breath for this shining example to the world.
In fact, please cite ANY country throughout history that has had the kind of international power the USA has had and has been as civil and restrained as the USA has been. You're going to struggle with that one.