One particular (I think well founded) worry about the hereditarian position is that if genetic differences between ethnicities are admitted, people start thinki

One particular (I think well founded) worry about the hereditarian position is that if genetic differences between ethnicities are admitted, people start thinking about stuff like, say, an active "blackness" that drags people down, and that they'd start insisting that every black person has to be dumb or something like that. That people would stop really meeting people as individuals (woke blank slatism, of course, has that exact effect already, which is partly why it sucks). It's somewhat hard to get people to dispassionatedly understand that all the hereditarian position being true would mean that what differed between populations would be the counts of people with a certain levels of ability, and that's it. Dunk a smart black man, a smart white man, a smart East Asian and a smart Ashkenazi in green paint and you have four smart green men unburdened with any mystical force acting on their mental faculties. Another possibility would be fears of things like "eh, they're dumb anyway" to justify giving up on people with a certain skin color because they won't achieve highly anyway, which would be heinous.