[quote]The cultural makeup of various human civilizations and societies are, in many ways, diametric manifestations of their native population's collective psychological profile. The overt cultural and administrative texture of Japan, for example, differs from that of Jordan's because the Yamato people are measurably dissimilar to Arabs when it comes to a distinctive assortment of psychological attributes. Both are subsets of the encompassing human species, but they've evolved in different geographical locales over the course of several thousand years.

Culture influences genetics; genetics influences culture.[/quote]

It doesn't hold up to scrutiny at the level you are bringing it up to. There are definitely cultural predispositions based on environmental factors; lactose tolerance comes to mind. But when we reach the level we are at now, where we are talking about political structures, the frame of time is simply too small for evolution to cause sweeping population changes. It is just as ridiculous to say that people in the middle east are genetically programmed toward tyranny as it is to say that middle easterners are genetically programmed to find oil. Sure, you could outline a pseudo-scientific bullshit argument for both of those things based on who thrives and who doesn't, but the reality of the situation is that neither political organization nor economic reliance on oil has been stable enough to become an evolved trait. 

The best way to consider this is to think about what happens when you transplant populations from one place to another. If you can find proof that there is any population in the world that [u]never[/u] thrives when transplanted into another culture, your argument might have some merit, but if you find any number of people of middle eastern descent successfully living in a western society and following its rules, than your theories need to be rethought.

This is a situation where you must remember not to over-inflate the actual science. Don't get modern genetic theories confused with 19th century racial politics.