So you can see that strawman and name calling is about the level of science you'll get when it comes to human differences, on this website.
Just before I get banned I'd like to point out that race is based on shared ancestry like any other taxa. So we'll leave these pretend scientists to circle jerk their PC fantasy.
On PBS? *facepalm*
That's a media corporation owned by Jewish commies that hires commie pseudoscientists to present their crap to hoodwink the white goyim masses, isn't it? Note how they all single out *white people*. Most of them are non-whites, living in white countries. Quite obviously commie demoralisation and invasion tactics.
https://en.wikipedia.org/wiki/Lysenkoism