There's certainly differences between difference "races" of people, that's undeniable. And those differences undeniably mean that some races manage better in certain circumstances than others. for example my fair skin is ill suited to the heat of Africa compared to the darker skin of an African.
But to make comparisons about who is "better" you have to know what context you're measuring and have a common ground for measurement. With skin performance in sunlight, that's fairly straight forward.
But that context for measuring is given, though less straight forward than sunlight effects.
Its success in a industrialized society (on an individual level) or success in developing a industrialized society (on the level of society). When afroamericans under perform in economic success and over perform in criminal activity, everybody assumes, that the reason solely has to lie in the social situation and upbringing of afroamericans. And then of course correctly concludes that something has to be done about it and the rest of the population are to some extent racistic ********, who cause the afroamericans to under perform.
But if the part genetics play in determining the success or failure in society cannot be measured, the assumption could be wrong and most importantly racism plays a smaller role in afroamericans under performing. And i prefer only to label people as racists, if they truly are.
When some countries are under performing, its the same everybody assumes, that it has to do with the political history, colonialism or mistakes in (often = not enough) development aid. Based on this assumption all under developed countries implicitly or explicitly gives the more developed world the sole responsibility for their plight. And i prefer, that before someone claims, that i am responsible for millions of dead (i am part of that evil devloped world, who exploits the rest of the world) , that he has proof and does not base his argument on unproven assumptions.
A vast part of activity towards minorities and underdeveloped regions/countries is based on the assumption, that if you snatch a bushman baby right after birth and put it into an US upper class family with an education aimed for Harvard, that the probability for success would be roughly equal to the case where you snatched a baby from anyone or anywhere else.
Racists would obviously deny this, anybody else seems to assume, that it is racist to suggest, that the assumption is wrong.
The IQ data i started the thread with, is obviously not reliable enough to shed any light upon the assumption.
And ideas for ethical methods to test the assumption, that genetic differences between races or groups have no or only a minor influence upon the social differences visible?