You're trying to use logic, when this is about revenge. We did the same thing after we were targeted on 9/11.
I am disappointed in us, as in the USA, for not advocating a plan to get rid of Hamas, while trying to contain "anger" and "revenge". It is our responsibility to the Israeli people, and to the world.
10 years from now, no one is going to remember the context, and a dead child becomes a recruiting symbol for future jihadists.