My solution to the conflict is:
Israel should give the Palestinians an ultimatum. Either surrender today or be bombed tomorrow. Anyone surrendering will be allowed safe passage into Israel proper or will be set up with documents to leave Israel. Im sure Kerry will allow them into the US, heck everyone else is allowed in.
Those not leaving Gaza, will be bombed at the prescribed time. The bombing will be complete and totally leveling. Gaza will be bombed section by section, but allowing for anyone who wants out, to come out. Therefore, the people who stay, be it men, women, children, old folks, or whoever, are thus now categorized as combatants and fair game.
This should take care of dividing the Palestinians into who is for Israel and who is not.
This should take care of all the tunnel problems
This should take care of schools and hospitals hoarding arms
I base the above on my former service in the IDF.