Strawman aside, down syndrome is just as common in black people as it is in white people, so you know, nobody was denying genetics play a role, they're just pointing out there isn't a proven correlation between "the white gene" and IQ like so many racism apologists want to believe.
I am curious, it just turns out the world is more fluid and diverse (billions of people, millions of non-isolated genetic populations), and more interesting, than over simplified and debunked ideas like "5 races with known IQ stats".
