Originally Posted by Bostonian
Neither of you should be surprised by unwillingness to acknowledge differences in cognitive abilities, because the instruments that measure individual differences in those abilities also reveal substantial group differences in those abilities. A society that does not want to admit that there may be group differences will not be able to think clearly about individual differences, unless by a happy coincidence all groups do about the same on the tests used to measure those differences. They do not.
+1. This seems to be one of the root problems in US in particular.