Wrong.
Jordan wants nothing to do with them because they took in Palestinian refugees from the West Bank in 1967 when Israel took the West Bank from Jordan in the Six Day War, only to have the PLO repay their hospitality by using a Jordanian border town (Karameh) as a base from which to attack Israel, thereby leading to reprisals by Israel, which almost started another war between Israel and Jordan. The Palestinians also assassinated the Jordanian prime minister and attempted to assassinate the King. A Palestinian group calling itself the Popular Front for the Liberation of Palestine staged a series of airline hijackings, seizing three civilian passenger flights and forcing their landing in the Jordanian city of Zarqa, where they took foreign nationals as hostages and blew up the planes in front of international press.
The Jordanian Army then went to war against the PLO and the PFLP and the Palestinians were eventually chased out of Jordan in 1971
Egyptian problems are the Muslim Brotherhood. Muslim Brotherhood have been trying to overthrow Egyptian governments since it started in the 1920s. The Muslim Brotherhood assassinated Egyptian President Anwar Sadat in 1981 because they made a peace deal with Israel in the 1979 Camp David Accords. Most importantly Hamas is an offshoot of the Muslim Brotherhood.
Jordan doesn’t want them because Abdullah, the current king of Jordan, fears they’ll overthrow him, which nearly happened to his father Hussein in 1970 when the PLO tried to take over the country.
The Egyptians don’t want them because they also fear the Arabs from Gaza will once again cause chaos.
The Palestinian leadership doesn’t fight for its subjects’ rights anywhere either. It gets funding to get militarized, pockets the humanitarian aid, uses its subjects—including children—as human shields and cannon fodder, and pursues only one goal: the destruction of Israel, so as to take over the territory as a Sharia state.
That's just for starters.