Harass? Is that what numbnuts calls the wanton, random killing of Israeli civilians? My operative analogy is this: Hamas is using the rocket equivalent of a Saturday Night Special. Just because someone uses a clapped-out snub nosed 22 at long range doesn't mean he isn't trying to kill you. He'd use a Glock if he could get one. Hamas would use laser/gps guided munitions if they could get them.
So, according to this dilbert, as long as Hamas can only kill a few innocent civilians, Israel shouldn't really be all that upset.
Hamas' stated goal is to destroy Israel. A 'proportionate response' would be for Israel to destroy Hamas.
You are 100% correct.