If I had to guess the primary ancestry of Ashkenazi Jews on average is from Germany, Poland and the Soviet Union where most of them primarily came from
In much smaller amounts than the Syrian Palestinians they might have some ancestry from the middle East near Israel including ancestry from the countries that were enemies of ancient Israel
If you take a weighted average of the locations of their ancestors you might end up with Ashkenaz in Turkey not in Israel
They did DNA studies to try to find the location of ancient Ashkenaz homeland of the Adhkenazi Jews in an article I read and they came up with a location in Turkey that they said was where Ashkenaz was
The Soviet Union ancestry might contribute some Mongoloid ancestry mixed with Caucasian ancestry
