Or are you asking me to find a study which shows which specific cultural differences make large swaths of people more likely to, say, pursue sports and music versus academic achievement? Or invest in their children?
Again, the evidence is ubiquitous, overwhelming, and unambiguous. Synthesizing it into a paper would get a researcher fired in the current climate, if they could even find funding or a willing publisher; not because it would be factually incorrect, but because the politicized academic culture would find a title like "The Influence of Ghetto Black Cultural Norms on Professional Achievement" unpalatable if the paper didn't bend over backwards to blame "socioeconomic factors". Which is ironic because culture is the socio in socioeconomics, yet I would actually challenge YOU to find a single modern paper which examines negative cultural adaptations in any nonwhite first world group.
Further, my argument has been dishonestly framed (as is typical) as a false dichotomy, I'm not arguing that discrimination doesn't exist, but the opposition is viciously insisting, that all differences among groups are too minor to make a difference in a meritocracy, and anyone who questions otherwise is a bigot.