I wonder what the acceptable level of civilian Palastinian causalities are for the Israeli military. Probably infinite.
It's like me going up to a dozen fully armed army recruits and stabbing one of them, they'd beat me to a pulp and I'd probably wouldn't survive. It's obvious that this is what Hamas wanted, they wanted pictures of dead children everywhere, and the scariest thing is they have rationalized this in their heads as they'll go straight to heaven because they're martyrs. It's pretty sick to be honest.
On the other hand, Israel has gone way too far and has been too heavy handed now and shouldn't have taken the bait.