Important - soon we will have the scientific/genetic evidence that sub-Saharan Africans have an IQ of about 80, adjusted for poor nutritional conditions. Whites sit at 100, Asians 105 (with an IQ centred closely around the mean), and Jews 103 to 107, depending on estimates, with a wide bellcurve, similar to Caucasians.
As this science continues, it will be impossible to continue to blame Caucasians for the failures of Africans.