Unfortunately unabated ignorance is rife as is historical illiteracy.
Palestinians (along with the Lebanese, Samaritans, Syrians and other Levantine populations) have the highest DNA connections ancient Canaanites and other indigenous populations to that land. They never "came" from anywhere.
Excellent breakdown by a scientist [AI Summary below]:
A notable TED talk discussing Palestinian and Levantine DNA is titled "The splendid tapestry: How DNA reveals truths, ancient & lasting" by Nathaniel Pearson. 1]
Key Takeaways from the Talk
The "Hummus" Metaphor: Pearson describes the genetic profile of Levantine Arabic speakers (including Lebanese, Syrians, Egyptians, and Palestinians) as a shared regional mix—likened metaphorically to ingredients like olive oil, chickpeas, sesame, and lemon. 1]
Ancient Continuity: Genetic data extracted from ancient Levantine remains (such as 3,700-year-old samples from Sidon) shows a profile very similar to this modern regional baseline. 1]
Connection to Modern Palestinians: Modern Palestinians exhibit a genetic makeup closely mirroring these ancient Levantine populations, demonstrating deep and continuous genetic roots in the region alongside subsequent local admixing. 1]
Addressing Narratives: The talk uses these genetic findings to counter political claims or misconceptions that attempt to portray Palestinian populations as recent or foreign migrants to the area. 1]
Even Ben Gurion in articles/books he wrote in the 1910s :
He made this case most clearly in a 1917 essay, “On the Origin of the Falahin,” and in the 1918 book Eretz Israel in the Past and Present, written with Yitzhak Ben-Zvi (later Israel’s second president).
Ben-Gurion’s argument was roughly this:
"After the Roman wars, many Jews left, but a large rural farming population remained.
Those farmers later converted, first to Christianity and then, after the 7th-century Muslim conquest, to Islam.
The 7th-century Arab conquerors did not wipe out or replace that local agricultural population.
Therefore, the Muslim fellahin of western Palestine were, in his view, largely of Israelite/Jewish stock. He wrote that “much Jewish blood flows in their veins.”