Again, you seem to lack the ability to separate the merits of the argument from personal attack. This is therefore not a conversation worth having.

I'm just going to leave this article about immigration, culture and performance here from the ultra conservative, right wing NYT:

http://www.nytimes.com/2014/01/26/opinion/sunday/what-drives-success.html

I hope the "cognitive dissonance" (i love psychology), plays itself out before you go back to pretending not to understand on average differences (just because A group on average differs from B group by 5% in trait C doesn't mean a member of group A will have more trait C then a member of group B, in fact many individuals in group B will have more trait C than members of group A).