I am a secular Jew. A converted Khazar
Khazaria: A Forgotten Jewish Empire | History Today
A lot of intellect is genetic and most Jews are intermarried.
I am also a holder of the right of return. I lived in Israel in the 1980's and found that the Sabra or Israeli born are not like us Khazars but have a common heritage. The majority of Israelis families (+-60%) were from the ME, N Africa or Sephardi Lineage (Spain Southern Europe). I had friends whose families came from Yemen -- they are what is left of the Biblical Jews. Jews are not monolithic. I never saw poor Jews until I lived in Israel -- they immigrated from the developing world.
Religious Muslims, Christians and Jews all pray the the God of Moses -- so conflict is political and monetary.
If your Grandmother was a Jew Hitler sent you to the ovens. Remembering that -- all Jews have a common identity.