In the first screenshot see an attempt (by a commenter) to define "white" genetically. In the second (done by me), see how an ancient CLV population (BPgroup) has many of its closest PCA relatives (based on population Fst) outside the reader's "white" triangle. 1/ 
In two other screenshots (by X users), see the never-ending debate (in online platforms, at least) whether Jews are white or not. The same West Eurasian PCA, different arbitrary definitions of "white" or "non-white" 2/
If we look at genetically close populations to present-day Ashkenazi Jews (in terms of Fst), they parallel the West Eurasian PCA. The top-20 list includes Jews from Turkey, Greeks, S Italians/Sicilians (from Europe), as well as Turks, Lebanese, and Armenians (from West Asia) 3/
To many all of these would be considered "white". Others might draw triangles, circles, and ellipses to define an arbitrary and elaborate geometry of "whiteness" that has more to do with personal desires and tastes rather than any genetic reality in the data itself. 4/
People like the BPgroup of the first post in this thread belonged to the continuum of ancestry formed by admixture of diverse people who preceded them (hunter-gatherers of eastern Europe, the Caucasus, and Siberia/Central Asia). Their "whiteness" or not is beside the point 5/
And similarly about the Ashkenazi Jews of today, themselves part of a European-Near Eastern continuum of ancestry along the genetic bridge between Europe and West Asia, of mixed origins themselves, like pretty much everyone else on the planet at some time depth or another. 6/
Human history is much too interesting and varied to boil down to simplistic "white" or "not white" categories; these are perpetuated because of social inertia but do not carry any objective meaning and should not be misattributed to genetic variation /end
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