I totally agree with you from a statistical view-point but there are definitely cultural, social, educational differences between Americans and non-american tha

I totally agree with you from a statistical view-point but there are definitely cultural, social, educational differences between Americans and non-american that may give us the upper hand in founding companies (as evidence by the founders of many large tech companies). I definitely DO believe that that we have a larger relative portion of our population that poses more of the characteristics required to be a successful founder. See also PG's comment on founders with strong accents.