That wouldn't provide any real solution to the region's political problems. Jewish people make up some 75% of the country. The only way to turn Israel into an Islamic state would be through conquest. The country would still have Occupied Territories except the map would be inverted.
Yeah, I can't imagine why all of us Jews aren't voting for the policy of an Islamic State in the Levant. That platform has obviously never been tried before, certainly not by the region's most disgustingly, genocidally evil terrorist group, the Islamic State of Iraq and the Levant.