All the hatred directed towards the US Is certainly warranted, though (in fact, it is towards each and every former/present imperialist state). The US particularly has bullied and pushed around just as many countries as the former British and Ottoman empires had. Whether it's propping up banana republics, rushing to secure corporate interests (rather than public ones), or installing unstable governments, there is certainly a case to be anti-American and a reason to support it. There is nothing to support, or, to praise in modern America.
But that's just my 1-2. Until we get a gov that cares about the laborers and one that refuses to suppress workers (at home and abroad), then I see no reason to support such a system.