Few? More like none at all...
If every Israeli left tomorrow for Sinai with only the clothes on their back, a years supply of water and food and a tent, and the Palestinians moved into Jerusalem, Telaviv and every other Israli city, in one year Sinai would be a paradise, with Israelis prospering in farming and other industries.
Wherever the Palis moved into would be a $hit**le and they would be blaming the Israelis.
Oh, there is a few around the edges; Turkey for one, Kazakhstan, Algeria and Morocco are surviving nicely. But they are far outside the madding crowd in the ME.