I mentioned in another post how immigrants are uniquely positioned to embrace the good parts of American culture and reject the bad. And that the superior performances of our children relative to fully assimilated Americans validated this approach. So yes each culture has strengths and weaknesses. And some are better overall. But i also keep my eyes open. I deeply admire Japanese culture but also see its flaws and weaknesses, including the conformity. I have quite a few Hispanic friends and love many things about their culture, including the warmth and playfulness, the strength of family bonds, the food and dance music. But I could do without the chronic lack of punctuality. I always add 15 minutes when one of them tells me they'll meet me at a certain time..
Having lived in all the regions of this country I've formed some views about regional American culture. There are things I like about each. But my overall ranking would place the Northeast first and the South last, with the Midwest and West somewhere in between. Those are obviously very broad strokes because even similar states like Minnesota and Wisconsin have cultural differences. And you'll sometimes see big variations within a single state.
I'll add that a certain type of religiosity with emphasis on the authority of sacred texts can hold back a culture when it comes to acceptance of the spirit of enquiry. We saw that during the period when Confucian Orthodoxy reigned supreme in China. The condification and enforcement of Sunni orthodoxy in the Arab world caused it to lose its vibrancy in science and fall way behind. The Counter-Reformation caused some parts of Europe to fall behind in science. And the literalist approach taken by certain groups has a negative effect on intellectual life in certain parts of this country.
On the flip side cultural changes like the Haskalah or Jewish Enlightenment can cause a group that once lagged far behind because of its emphasis on a certain type of religious schooling to experience a sudden and dramatic leap forward.
Our cultural wars are nothing new. They are a continuation of a battle that began with the discovery of the Scientific Method in the 1600s and intensified during the Enlightenment. They are not unique to the United States. The French fought a bitter culture war lasting hundreds of years over the role of the Catholic Church in their educational system.
If you want to learn more I recommend David Wooten's The Invention of Science and Joel Mokyŕ's work on culture and the Industrial Revolution.