You're right about national identity, though, a concept I would happily burn if it were possible. Worldview[1] is a terrible thing.
[1] http://www.skepticalscience.com/Debunking-Handbook-now-freel...
Even in subjects like social insurance you'll find an abyss among Europeans and US. I believe it has to do with how we grew up.
Maybe it's rarer than I thought to apply this to ones own social ideas, though. Shame.
Did you go out of your way to test the assumptions behind this idea before taking it seriously?