No, it doesn't. It means that people who think the US (or the West or whatever) is somehow uniquely evil have an incorrect view of the world and will have incorrect actions in the future as a result. That the US is screwing up doesn't mean that other places aren't screwing up worse. It also means that it isn't only the US screwing up, so if you start arranging your protests and rhetoric and such based on that theory you're going to get played by people who will quite happily play the part of "good guy" for you right up until they close the trap. It also means you may miss allies in the fight, like this guy. There is no way in which incorrectly thinking that the US is the worst or uniquely bad is a good idea.
I believe the US is worse than the HN gestalt thinks it is... but China is absolutely worse. It's a preview of where we're headed if we allow people to convince that we are obligated to hand more and more control over to the government to solve every last possible problem, up to and including hurt feelings.