You know, the argument that genes don't produce IQ differences, rather, culture does, is an interesting argument for people who say all cultures are equally valuable.
There is absolutely no argument that different groups have different IQs.
So, either genes lower IQ or inferior cultures lower IQ.
If we reject the gene hypothesis, then we have to work at getting rid of black, Arab, Hispanic and European cultures, as none of them are optimal for children..
Everyone should be embracing Asian culture.
For the children.
And we'll just have to ignore the high teen suicide rate in Asian cultures because.... well.