Just wrapping up a several weeks trip to Europe (London, Cologne, Edinburgh) as we speak. I think I'm having the opposite observation. Western cultures have so much in common it has actually been surprising to me. I always expected to be amazed by the differences, but if you throw out all of the superficial stuff the set of appreciable differences is rather smaller.
As for his specific points
1. I have no idea how somebody with half a brain and access to the internet can have this notion. Maybe I am the exception to the rule, but I never fancied my Country to be any more 'important' than any other nation. In fact, the opposite was often considered given that modern civilisation has few roots in the Americas.
2. Never believed in religion in the first place
3. Every country has their fair share of embarrassing points, and of course their fair share of unfortunate embarrassing people. I have rather enjoyed seeing that the human condition is more or less the same the world over. I also feel occasionally embarrassed by my fellow countrymen, but I figure the best way to counteract that is to represent myself, and by association my country, the best I can.
4. As for that, we will see. I've not seen anything that screams out to me "This economy is vastly more productive than the US" in the areas that I have visited. Perhaps public transport and some infrastuctural aspects lend themselves to a more efficient country, and the US should certainly take a look at those things.
Oh well, I'm glad to have had the experience of travelling throughout Europe, but I would expect some deeper takeaways from somebody that literally spent years immersed in a foreign culture.