Honestly this is an awful situation. But the reason you don't see more harsh criticisms from world leaders (and there have been criticisms and statements calling some of what they are doing as illegal) is because the world leaders know that they may need to same option if something similar happens to them.
Do you have a better suggestion for what Israel should do in order to respond. And saying "free Palestine" doesn't count. They completely left Gaza and it got worse. I can't stand Bibi, but he absolutely called it when they were planning to leave Gaza. The blockade of Gaza didn't start until Hamas took over. And do recall Egypt is also blockading.
If Tijuana started launching rockets and attacked thousands of civilians in California, what do think the response would look like? Or if Morocco did the same to Ceuta?
I don't see how this attack ends. I mean it has absolutely destroyed the chance for Gaza reps to be involved in peace talks. Not that there was much chance of that. Honestly, if I had to guess, Israel plans to wipe out all of the higher up Hamas this time in an attempt to bring Gaza back under the PA/Fatah.
But, given the situation is what it is, how do you think the Israeli government should respond?