Quote from Mom0/pH0x:
Pseudo-History and Poppycock
The actual details of the Khazar theory concerning European Jewry are simply pseudo-history and crackpot poppycock.
Jews already lived in Europe a thousand years before the Khazar kingdom was formed. There are no genetic markers or indicators at all showing that Ashkenazi Jews are descended from Turkic tribes. In fact, there exists considerable genetic evidence showing that European Jews are closer to Levantine and Syrian Arabs than to Central Asians.
After the Mongol invasion most Khazars probably assimilated into the Jewish communities of Iran and Iraq, which of course eventually emerged as important Sephardic centers, formed mainly of Jews with Semitic racial characteristics, descended from migrants and exiled Jews from the Land of Israel. In any case, there are more "Semitic" Sephardic Jews in Israel today than there are European Ashkenazi Jews. And if the Khazars looked Turkic, how on earth could they give Ashkenazi Jews a European complexion?