~‘People are highly imitative, and if the Jewish advantage were purely cultural, such as hectoring mothers or a special devotion to education, there would be little to prevent others from copying it.’ They haven’t.~
Why would one group copy another? But you surely can await people copying one another within one group.
Their argument is absolutely illegitimate.
It is absolutely clear that difference between groups are solely cultural and there is no legit clues to prove otherwise.
Of course you need some intellectual and physical qualities for more achievments but if some ethnicies generally lacks that it is cultural as well.
If Muslims are leaning to inbreeding you can await a number of underforming freaks within their societies. If some other group doesn’t value education and gaining valuable skills and underperforming as a result it is exactly cultural.
>>It is absolutely clear that difference between groups are solely cultural and there is no legit clues to prove otherwise.
The field of athletic success says otherwise.