I suppose it could be worth a try
But if the suicide bombings continue even after UN intervention, then what? If the Israelis can't stop the bombings, why do we suppose UN forces could?
Would it simply put Israel in the position of having to endure continued bombings, but have no avenue of military response other than reliance on the blue helmets?
On the other hand, if the UN were by some miracle able to stop them from killing each other, maybe the shouting would turn to talking. Who knows?
It'd be a heck of a test for the UN.