What noone seems to have grasped is that the Arab states are - quietly & carefully - on Israel's side in any stoush with Iran. As we saw a couple of days ago as the Saudis remained silent (and regularly assist US aircraft) and the Jordanians (over 50% Palestinian population) helped shoot down Iranian drones & missiles (at some risk to the Jordanian autocracy). Iranian Shiites are much more dangerous for the Arab Sunnis than anything Israel might do.
And as to the Palestinians (a VERY mixed ethnic group), the Arab states are notorious for NOT welcoming them in to their own states. And even Egypt - similarly ethnically mixed - does not welcome them.
I have myself witnessed what the 'pure' Arabs of the Arabian peninsular think of the Palestinians. I was chairing in the mid-1990s a meeting in Canberra with Arab-state military, and Oz Foreign Affairs (DFAT) had the stupidity to send along a Palestinian Australian as their rep at the meeting. Things were going well until he entered the room and opened his mouth. Immediately the temperature dropped some 10 degrees ...
In sum, the Palestinians have no friends. The only sensible solution is NOT a 2-state one (which everyone keeps yapping on about, ignoring the impossibility of drawing appropriate lines in the sand). The sensible solution - but only possible after 50 or more years of peaceful coexistence - is a one-state solution, with all parties - Palestinian & Jewish - Christian, Muslim, Jewish & secular - treated as equal citizens in a fully-democratic state. Won't happen in my lifetime but.