[fsloth]

"No, the consensus of scientists who actually study this is pretty strong,"

Lots of groups develop their own consensus. That still does not mean it's correct.

The main problem is that they want to find an arbitrary metric and then prove that there is a racial variance to it. I would claim that this is a variant of P-mining[0].

They take the concept of "IQ" within the context of the tests to be a scientifically concrete measure like height or weight (which it isn't) than then search for datasets which supports their racial superiority hypothesis.

[0] https://en.wikipedia.org/wiki/Data_dredging

Also, Any list that contains the name "Tatu Vanhanen" should be immediately suspect. He's one of the known "racial IQ" crackpots.