Plenty of genetic studies that show Ashkenaz jews are primarily descended from the same folks as middle eastern jews and closely related.  Cohenaim in particular are tightly related across Jewish groups.  I'd be happy to provide actual links if folks are interested.  0% genetic evidence that the "khazar theory' of Ashkenazi jews being descended from khazar converts true.

Missing the point though-- Judaism is a tribe.  Jews are not obsessed with Genes.  As a tribe, we descend from folks that were exiled from ancient Israel, with converts and adoptions mixed in. The fact that Ashkenazi jews (some) are part European and that yemenite jews part arab irrelevant.  It is a tribal ethno-religious group.

You aren't going to be able to kick us out of Israel and the comparisons to South Africa are absurd.

Hope everyone has been well!