Let us consider what the Arab countries think of their Palaestinian brothers. And ask ouselves, why is that?
Palestinians The Arabs Betrayed Us - Again
There were arabs, of all faiths, going back to the mid-50's, that I knew of, that rather worked for the Israelis that accept the palestinians refugees or their "cause"
Host countries that had little choice would not let them work, with a few exceptions, or apply for citizenship. They wanted them gone, as far away as possible.
The guess from hell was how most though of them. If they did not actually cause trouble, their seemed to attract it none the less. Unfortunately, as with the syrian refugees, the crime rate went up, both by them and against them. Even with in the camps, which they governed, there was inevitably violence between families, tribes, political parties and the formation of crime gangs.
The idea of a palestinians state was far less important to just getting the palestinians out of their countries. Jordan, Lebanon, Kuwait, Egypt, Syria and even Iraq have had their troubles with palestinians.
Arabs created the problem but were unwilling to do anything to deal with the palestinians except to keep them contained and receiving UN aid while trying to ignore their presence.
The situation was not fair to either side, but there was little they could do after the international terrorism became an issue. The host states would not even go into the camps and arrest the culprits as the camps were protected sanctuaries, even for other criminals and terrorist elements globally. Within the camps they were untouchable except by the palestinians themselves.
It was anything except ideal for the host or the palestinians. The refugees became a cancer feeding on the host that could not be eliminated.
It was/is a sad situation for everyone that festered and fed a hotbed of hate.