Remember how the PLO participated in genocide of Lebanese Christians.

Christian Lebanon opened their border to Palestinian refugees. Welcomed them with open arms. Big mistake. Once they were strong enough they were a major player eg PLO as the Christians were wiped out. There was no international outrage. There was no act of violence against Palestinians by Christians. The Christians were massacred because they were Christians.Roadblocks were set up between towns and any Christians found were removed from their car and killed. Lebanon was 70% Christian, now 20%. All this happened between 1970 and 1990. Ended when Syria entered the so called civil war and stormed the last strongholds in Oct 1990. The Israeli army did cross the border and saved the last few Christian towns from extermination.
Even Jordan would not take Palestinians, and Palestinians are Jordanians. King Hussein saw the threat from the PLO to his rule and expelled the Palestinians in a war known as Black September in 1967. Palestinians in the West Bank retained their Jordan citizenship till Jordan renounced all claims to the West Bank in 1988.
With the recent atrocities committed by Hannas, it shows nothing has changed. Nobody wants them. Not even surrounding Muslim countries eg Egypt.