Part of what is wrong with the view of American imperialism is that it is antithetical to our interests. We are better off when people are governing themselves. I'm sure there is some guy that will tell you that philosophy is no different from the Roman Empire's. Well, it is fundamentally different.
I have always had a tendency to keep enlarging problems which I personally think is the way the world works... that seeing anything one dimensionally on the kinds of political, sort of big issues of human progress is going to be a distorted view of things, which is why over my career I have gone seemingly from subject to subject to subject.