Maybe the Middle East be such a mess.
Really, Israel was the only time they came together. After it was destroyed, all the Arab nations went back to fighting the other, all the way to today.
So, what if the short-lived Jewish state in Palestine, called Israel, was not destroyed by the armies of Egypt, Jordan, Syria, Iraq?
This might be ASB, but if Israel survived we might have seen democracy in the Middle East for the first time. But it's hard to imagine in an area dominated by absolute monarchs and authoritarian dictatorships.
Most of the Zionists were socialists, or at least very left-wing. Many lived in communes (in Hebrew called kibbutzim). I think the state of Israel would have been friendly to the Soviet Bloc. This would drive the surrounding Arab states to ally with the US and would probably encourage anti-Antisemitism in the West.
Would Israel be able to successfully integrate the Palestinian Arabs, or would there be a massive refugee crisis like OTL (involving Arabs instead of Jews)?
I'm not feeling it.
We must remember, even before the USSR, Russia was very anti-Semitic, and it got way wrost under Stalin. It's more likely it find a friend in the United States and the West. Reddish? Yes, but a Ally is a ally in the Middle East.
And how would a Jewish state deal with the PLO? The Palestinians got screwed by the other Arab countries when Palestine was divided by the winners and being a plague to Egypt, Syria, and Jordan for years