What bothers me, is that your argument isn’t of nature vs nurture, but of how we can extrapolate intelligence from the ratio of ones eyes raised to the power of our skin colour.
You are equating modern-advanced man with MTV whilst ignoring the Native Americans who were slaughtered to allow that dream of manifest-gluttony to be realised.
Also. Let us consider things in perspective, as you wished:
I gave you the Epic of Gilgamesh, you gave me Huckeberry Finn.
I gave you the tablet of Amarna you offer me Mormon.
I gave you Darius whilst you gave me Hitler
It truly if for your sake that I suggest you postulate away from historical facts.. they all point towards the inferiority and barbarism of the wide eyed albino types.