He was saying. .. that if a Jew lived in a place for a 1000 years they would pick up genes from the locals. Like Jew's having blonde hair and blue eyes. .. but I kinda wonder if they were not light to begin with..
The original inhabitants of Israel were not dark skin people, contrary to what the liberal lying historians may teach. In fact, the Torah refers to the native Egyptians as a bronze-skin and dark people. If you have ever met many Turkish natives, which is located very close proximity to Israel, many of them have very light skin and blue eyes. The darker skin genes actually came from inhabitants of Yemen and Arabic tribes intermarrying and mixing. That is why there is such diversity in looks in Middle East and many Middle Eastern people have Arabic features. Native Lebanese, Syrians, Turks , even Persians are lighter skin people and have many European like features. Many mistake Arabic features , which originate from Southern Saudi Arabia and Yemen as being the indigenous genes of the region which is totally false.
Jewish residents only picked up the looks of the locals , not from living there, but from being repeatedly raped by them. Rapes and pogroms were a common occurrence among Jews and why so many Jewish women ended up giving birth to children who could be half Cossack or half Russian or half Pole. My great grandfathers villages had many pogroms and they would rape our women all the time, in addition to robbing and murdering us, as they murdered my Aunt Gittel.
Anyhow, he is 100% wrong about us Jews being 95% Slav. We were never respected, loved or accepted by our Slavic Russian, Polish or Ukrainian hosts and we never intermarried or shared our genes with them out of any goodwill or mutual respect. They treated us like subhumans and most Jews in the end escaped Eastern Europe because we were so oppressed and lived like slaves.