Difficult awkward melody? I wouldn't think it's any more so than the Marseillaise, the Soldiers Song, the Internationale, any decent anthem... You've got a good tune, with words that are in fact anti-imperialist. I gather it gets wrecked by incompetent show-offs hired at public events in America, presumably because they don't want the crowd to sing the words. But those bastards would wreck anything, as,long as you let them get away with it.

If I were American, that's the kind of thing that would annoy me, not people making comments about aspects of my country's history and present state. There sometimes seems to be an awful lot of insecurity and heightened sensitivity around. It might make sense in some small fragile nation that's been ground down by oppression and poverty, but it really seems strange in citizens of what is at this point the most powerful human collective the world has ever known.