You're mixing causation and correlation. Those with genotypes that produce black skin score lower on IQ tests on average but I never claimed the gene caused it and even disclaimed it above:
>> nor does it mean the gene itself causes that
So re:
>No, they don't.
Yes, they do, but you just jumped the gun straight to your strawman because you thought you were saying 'no' to something I didn't even say, maybe because of some political motive.