Canaanites and their descendants

The best genetic evidence shows that Jews, Christians, and Muslims in the Levant share a common ancestry.

"Jews or people like Jews," which is to say Canaanites, since Jews were a sect of Canaanites (also shown genetically).

Differences among them can be readily explained by what other groups they married into.

Levantine Christians and Samaritans didn't much marry into other groups, so their genetics is closest to the original Canaanites.

Muslims married into other groups a bit more, because it wasn't forbidden in the Ottoman empire (whereas intermarriage with Christians and Jews was restricted).

Thus the best evidence is not that Jews were replaced en masse by other nations, but that after many Jews left in diaspora, many of the Jews and others left behind converted to Christianity and some of those later to Islam.

I've read this on Wikipedia, and heard it from knowledgeable people, but here's an X thread with some details.