"Jews" are already race-mixed, thats the dirty dirty little secret they dont want anyone to know. They have most of their DNA in common with the Samaritans, who are a mutt race created by mixing various Canaanite and Hamites that were present in the Holy Land when the original Kingdom of Israel was destroyed. The Israelites were quite literally ethnically replaced by the Assyrians using the surrounding races, and they created a religion hybridizing Canaanite demon worship with some elements of the Hebrew Religion, essentially adding the Hebrew God to their Pantheon of Devils. The original Judeans despised them to the point the controversial part of the "Good Samaritan" parable is actual the Judean *accepting help* from a Samaritan.