No, that is incorrect. Arab Muslims invaded "the Levant" as it was then known in the 600s-700s. They killed/scattered the Christians who were living there (the physical decendants of the pre-Jesus Hebrews). The Islamic persecution of Christians in that area was the reason for the Crusades. The "Palestinians" of today are decendants of those Arab invaders.
No.
The present-day "Palestinians" are simply Arabs who arrived with the Muslim conquest of the Holy Land. They are not "indigenous" to the area.
No, that is incorrect. Arab Muslims invaded "the Levant" as it was then known in the 600s-700s. They killed/scattered the Christians who were living there (the physical decendants of the pre-Jesus Hebrews). The Islamic persecution of Christians in that area was the reason for the Crusades. The "Palestinians" of today are decendants of those Arab invaders.