No. They're not foreigners or "heteroclite" anymore. This is where I believe Arab leadership failed: in 1947 the Arab Higher Committee ordered a boycott of the USCOP investigation. They believed, as Rashid Khalidi pointed out, that "the native people ... refused to divide the land with a settler community". Did Palestinian leaders not realize two salient facts: the Jews of Palestine weren't leaving, because they had nowhere to go. Antisemitism reached its apotheosis in Eastern Europe after WWII, not during; & they weren't going to live as a minority in someone else's country, not again.

The Palestinians had the opportunity to put their case before the UN, & chose not to. They did later participate in the UN ad hoc committee that evaluated the UNSCOP report, but again refused to agree to anything but a single, undivided state. They argued that UN principles required they not interfere with the will of the people in question, but evidently the only needs & desires were those of Arab peoples—and that included Arabs who had come to Palestine during the Mandate, nearly doubling the overall Arab population. Jews, including those who might have several generations in the soil, however, need not apply.

In believing they could prevent partition—the need for which had been obvious to outside observers at least since the Peel Commission ten years earlier—I think Arab leaders let their people down & misjudged the Jews.

Just as the Israelis would later misjudge the Palestinians.

Israel is making terrible mistakes right now. But it will survive, just as the US is on the verge of making yet another terrible, ridiculous mistake ... but we'll survive. It's what we do.