And, although I quoted from the article, I also quoted from the study itself--which you, of course, ignored ("self-reported population ancestry likely provides a suitable proxy for genetic ancestry").
But never-you-mind: keep denying reality and recite the mantra: "blank slate, all environment, no genetic difference between groups or individuals that's meaningful, etc. etc."
Now, you are quite ignorant and apparently indifferent to knowledge or accuracy.
You have problems. Nothing I am saying is controversial or something anyone should take umbrage at.
You could even learn something.
I never said any of this. Nor did I ever imply any of it.
It does point out a bit where you are coming from and why you have problems discussing science dispassionately.