"Healthy competition" between nations generates unhealthy gang mentality, favoritism for your gang and a lack of progress due to resistance against "foreign ideas".
Also forces down additional societal norms because you have to conform to your national identity
or you could just move to America, because we are Americans, and not Germans, Hungarians, swedish, Finnish, British, whatever, we are all just Americans.
Patriotism is a good thing, its what makes countries and people strive to be better then others, which creates progress, either social, economical, or scientific. You just be yourself, and be proud of who you are, wherever you live. If you decide you have to dumb yourself down to fit a norm, that you think your society accepts, maybe you should stop being a sheep, and be an individual. Just sounds like excuses to be some sort of emo anarchist or some shit.