Thank you for the thoughtful comment, @theperipatetic, I'm glad you enjoyed the article!
I completely agree with you on dichotomy - as I mentioned, think that none of the extremes is good and that the point is to find an optimum between them.
I also agree that when one nation aggressively imposes its cultural norms on other nation(s) it usually ends up bad.
It is indeed impossible to link individualism/collectivism with happiness in general, but the comment above made by @vieira and my reply to it may interest you. : )