A "National Pact" for palestine

http://en.wikipedia.org/wiki/National_Pact

What POD(s) are required to have (united) Palestine adopt confessionalism, instead of having it split in Israel and Palestine?
POD can be pre-1900 if it matters.

For example the different religious communities would agree that The President of the Republic should always be an Ashkenazi Jew, The prime minister a Sunni Muslim, the President of the national Assembly a Sepharadic Jew...

Would Palestine and the Middle-East be somewhat more stable?
 
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