Tell me about Khazaria. Are the European Jews descendants of

No, Karaites are the descendants of Khazars: https://en.wikipedia.org/wiki/Crimean_Karaites .

>>2676495
Pavić stated that the Khazars were a metaphor for a small people surviving in between great powers and great religions. In Yugoslavia, Serbs recognized their own fate; it was the same in Slovenia and elsewhere, a schoolbook on survival. The same in Hungary and Czechoslovakia, and on and on. A French critic said, 'We are all Khazars in the age of nuclear threat and poisoned environment.'[5]

>>2676516
This


>>2676495
The Khazars never followed judaism it's a meme created by the Rabbis(see Kuzari)

In the first place the Jews were never proselyte, unlike the Karaites and the Sadduceans

The ashkenazis are partially descended from them

Read this for an overview of the (potential) Khazarian conversion
http://www.jstor.org/stable/10.2979/jewisocistud.19.3.1

A far as genetics go, European Jews seem about half Levantine, half European. Doubt they have any Khazar ancestry at all.

As for Crimean Karaites and their connection to Khazars: no one really knows at this point, perhaps in the future.