And of course, there are those Turkic Uyghurs over in Sinkiang.
Exactly! Mongolian and Russian blood from the north. Tibetan and Indian blood from the Tibetan Plateau. The blood of numerous SE Asian groups from the SE. Japanese and Korean blood from the east. All moving very slowly into China over thousands of years into rather closed communities for most of that time. It all adds up to many regional differences in genetic makeup.
Only 0douchebag could say something as stupid as this in 2016.