Is MidEast origin of Ashkenasi Jewry totally untraceable due to age of ancestry?

[IAB]

Since many papers claim that there is evidence of Middle Eastern ancestry for todays Ashkenazic Jews, why is that not obvious in the DNA roadmap. Most of it is European Jewish Jewish yet mixed with Non Jewish Europeans as is expected when being wanderers on the world stage. Yet no evidence of Middle Eastern or Mesopotamian or such origin DNA for Ashkenazim seem to exist except where its a recent marriage in.

Are the papers that hold for a complete Khazar conversion theory along with other individual conversions win the day in regards to the non Middle Easter origins of Ashkenazic Jews?

I dont know if the same can be said for the Sephardic Jews, as they hail back to Spain, Portugal which really are only another part of Europe as it were.

[khazaria]

The partial Middle Eastern roots of Ashkenazim are easily traced and are obvious, whereas Khazar origins are entirely absent. Read chapter 10 of "The Jews of Khazaria, Third Edition" by Kevin Alan Brook (2018) and the collections of data at
http://www.khazaria.com/genetics/abstracts.html
https://jewishgenes.blogspot.com
http://jewishdna.net
Notice the existence of certain Middle Eastern Y-DNA haplogroup branches among Ashkenazim (some shared with Sephardim) and the close genetic clustering between Ashkenazim and Sephardim on PCA plots of autosomal DNA.

Also see the paragraph about the mtDNA haplogroup R0a2m at http://www.khazaria.com/sephardim-belarus.html
It is found among both Sephardim and Ashkenazim, and is ultimately of Arabian origin.

[IAB]

The partial Middle Eastern roots of Ashkenazim are easily traced and are obvious, whereas Khazar origins are entirely absent. Read chapter 10 of "The Jews of Khazaria, Third Edition" by Kevin Alan Brook (2018) and the collections of data at
http://www.khazaria.com/genetics/abstracts.html
https://jewishgenes.blogspot.com
http://jewishdna.net
Notice the existence of certain Middle Eastern Y-DNA haplogroup branches among Ashkenazim (some shared with Sephardim) and the close genetic clustering between Ashkenazim and Sephardim on PCA plots of autosomal DNA.

Also see the paragraph about the mtDNA haplogroup R0a2m at http://www.khazaria.com/sephardim-belarus.html
It is found among both Sephardim and Ashkenazim, and is ultimately of Arabian origin.

Thank you for responding. I will look into the sources you have presented. Am very grateful.