No.
OK
Your line:
There may well be a civil war within Israel and "Palestine" in order to cleanse each side of the radicals.
Aside from the non-original approach that every jew, concerned with his or her future, is a "radical" - which makes american republicans and all Bush supporters radicals too and a good democrat of you - you don't take into account israeli military training and weapons handling superiority.
Israelis will organise themselves immediately along the army structure lines and beat the living crap out of "palistanians".
Does it take to be a State Department employee not to understand that?
The Palestinian's will face the same dilema in having to shut down the wackos of Hammas , Jihad etc....
The former, I believe, can be accomplished. I am skeptical that the latter will be.