Isaiah 63 indicates that Edom still exists. And that it will be crushed by the Lord Jesus Christ when he returns in power to set up His Millennial Kingdom.
Nobody ever talks about the Edomites, even though their scriptural description and characteristics matches the "Palestinians" perfectly.
Isaiah 63 indicates clearly that the Edomites will not be destroyed in Israel. The Edomites will be destroyed back in their own Biblical land of Edom. The very same land that the Edomites would not let Israel pass through coming out of Egypt.
Therefore, it is inevitable for the "Edomites/Palestinians" to depart Israel and return to their own land. It is up to the Sovereignty of the God of Abraham, Isaac, and Jacob as to how that is accomplished.
IMO, when the Edomites' champions, the Gog-Magog Alliance of nations, are thoroughly crushed by God, exactly as prophesied, the Palestinians will retreat back to their own land. Probably with their tails tucked between their legs. Hopefully very soon. The Gog-Magog Alliance of nations are already aligned.
Replacement Theologists utterly ignore and despise the yet to be unfulfilled prophecies of God. Even though they were warned in Romans chapter 11 the consequences of despising the natural olive branches, Israel.
The fulfillment of Ezekiel chapters 34 through 48 will occur exactly as prophesied.