> a plurality of Israeli Jewish people are indigenous at least to the region.

Do you have a source for that?

Britannica says:

> The largest proportion of Jews trace their roots to Europe (including the former Soviet Union) and North America, though some also hail from Africa (mostly North Africa), Asia, and the Middle East.

https://www.britannica.com/place/Israel/Demographic-trends

I think this is partially supported by immigration statistics:

https://www.jewishvirtuallibrary.org/total-immigration-to-is...