The above graph by a Chinese science group shows that Uyghurs are about half and half. They were White 3600 years ago, when they left those famous redhead mummies, and then there was mixing with Northeast Asians. About 700 years ago there was an injection of Europeans, probably females brought in by the Mongol conquests. The forced sinization going on today can be seen as the dilution and absorption of an ethnic group. Of course, there is nothing sacred about an admixture that coalesced in historical times, yet... (Applying Prof. Maersheimer methodology of realism, Uyghur volunteers had joined the Islamic State and were no friends of the Jews, so the Chinese State is working for me by repressing those dangerous, barbarian fanatics.)
Ancestry makeup and variations in admixture proportion within XJU. (A) ADMIXTURE results of XJU with West Eurasia, South Asia, East Asia, and Central Asia Siberia populations at K = 4 (in order https://academic.oup.com/view-large/figure/96943814/msx177f2.tifto show a full picture of Eurasian populations, all populations of the four major ancestries (including representative populations) were included.). Proportion of each ancestry in XJU was highlighted with a pie chart. Height of the bar is proportional to admixture proportion.