- Supported Saddam in Kuwait
- Supported Saddam in Iraq
- Massacred Christians in Lebanon
- Tried to overthrow Jordan
- Caused chaos in Syria
- Destabilized Libya
- Aligned with iranian axis despite gulf states (eg Saudi) hosting at that time
- Complained about Egypt-Israel peace despite the former being the only country to send men to die for them
- Sent jihadists into Sinai
- Ran military ops out of Tunis after Tunisia agreed to host Arafat causing Tunis to get bombed
- Repeatedly militarized "refugee camps"
Like whether what israel is doing is wrong (it is) is independent of whether or not the palestinians kinda suck (they do)
OP isn't making a moral argument. They're making a practical one. It's practical for a potential host to be wary about accepting refugees given the positions of their predecessors. Particularly when the current popuations are engaged in decades (centuries?) old disputes based on ancestral rights.
Like we can even blame the way things are on the israelis, or at least majorly on them, but that doesn't change the calculus for other arab states.