Obviously the non-military aspect of 'liberal internationalist' imperialism - such as the UN - has been fairly beneficial for the US and the interests of at least its elite. When this philosophy of international relations has been used to engage in aggressive wars - such as Vietnam, Korea, Iraq, etc., its utility has been very poor.
I voted that I am a 'leftist anti-imperialist', but I don't think that fits pefectly. I would prefer the appellation 'McGovern Democrat'.
McGovern is more of a war hero than any of the warmongers.
http://www.law.uc.edu/current/auschwitz050418/index.html
I have no doubt about that. The man was very admirable in many ways. However I do believe he questioned america's empire more than any other candidate for president. I suppose Jimmy Carter came closest during his presidency to reducing imperialism, as far as actual elected leaders.. and he has certainly spoken out against it since.