"America-bashing is anti-Americanism at its most radical and totalizing. Its goal is not to advise, but to condemn; not to fix, but to destroy. It repudiates every thought of reform in any normal sense; it sees no difference between American liberals and American conservatives; it views every American action, both present and past, as an act of deliberate oppression and systemic exploitation. It is not that America went wrong here or there; it is that it is wrong root and branch. The conviction at the heart of those who engage in it is really quite simple: that America is an unmitigated evil, an irredeemable enormity.
This is the specter that is haunting the world today. Indeed, one may even go so far as to argue that this America is the fundamental organizing principle of the left as it exists today: To be against America is to be on the right side of history; to be for it is to be on the wrong side."
It's worth reading the whole thing.