However, isn’t it reasonable to argue that the same pressures (ostracism, oppression) that selected for placing a cultural premium on achievement and education also created a biological pressure for higher intelligence and achievement through natural selection? Not that oppression and minority status always does this - there are plenty of “minority” groups in America and in Europe who aren’t exactly known for being high-end achievers.
Yes, absolutely social pressures can manifest in natural selection and create greater ability at the genetic level. But the common tendency is to characterize any overtly observable differences between people as racial. It’s easier, a product of lazy minds who simply have to justify a predisposition of theirs by demonizing the opposition. This is what cultures of oppression do best, and its ugliest manifestation is not at street level, but at the boardroom level where people should know better but sabotage their thinking because they have to rationalize anti-social and criminal behavior. Why did millions migrate to the US and Europe if not to encounter a culture that was free from the corruption and criminality they found at home. In the past they assimilated and made our country great. But now they are kept from assimilation by leftist think tank idealogues who’s only job is to destroy America any way they can and keeping separatist racial or religious or national polarities alive and well as a destabilizing pressure point is at the top of their lists.
Of course, the mirror image of the intellectual laziness that says "it's all genetic" is the leftist intellectual laziness turned dogma of "it's all environment" - i.e. if we only engineered the right social conditions, all differences among both groups and individuals would disappear.