The premise of the question contains a historical inaccuracy. There is no period in which "Palestinians maintained Israel while Jews were exiled" because:
| Period | Primary Inhabitants | Notes |
|---|---|---|
| Bronze/Iron Age | Canaanites, Israelites, Philistines, Phoenicians | Ancestral to both Jews and Palestinians (genetic continuity) |
| Roman/Byzantine | Jews, Samaritans, Christians (Greek/Aramaic/Arabic speakers) | Post-135 CE: Jews minority; Christianity dominant |
| Early Islamic (630s–1099) | Arab Muslim conquerors + local converts (Arabized Aramaic speakers) | Arabic language, Islam spread; no "Palestinian" national identity |
| Crusader/Ottoman | Mixed: Muslims, Christians, Jews, Samaritans | Ottoman millet system; identity = religious community + locale |
| Late Ottoman (1800s) | Arab peasants (fellahin), urban notables, Jewish minorities (Old Yishuv) | First Zionist aliyot (1882+); "Filastin" as district, not nation |
| British Mandate (1920–48) | Arab Palestinians (emerging national movement) + Jewish Yishuv (growing) | Competing nationalisms; 1948 war → Israel established, Palestinian nakba |
Modern Jews and Palestinians share deep Levantine ancestry (Y-chromosome haplogroups J1, J2; autosomal studies). Both descend from ancient Canaanite/Israelite populations with subsequent admixtures. The divergence is national/religious identity formation, not population replacement.
The framing imposes modern national categories on pre-national history. Accurate statement: Arab communities (ancestral to Palestinians) continuously inhabited the land during Jewish diaspora periods, maintaining its cultivation and sacred geography, but not as a sovereign entity called "Israel" or a national group called "Palestinians."