If that's your standard you've made retaliation impossible, there's always collateral damage in war. Interesting limitation to impose on Israel, considering the initial attack that caused said retaliation was all about slaughtering and kidnapping non-related human civilians.
what history created the terrorist attack feels dirty.
A repeatedly vanquished foe who constantly starts wars and loses, resulting in more and more land and freedoms taken from them each time, yet still refuses to sue for viable peace after 70+ years of this? The various Palestinian factions have remained belligerent while launching terrorist attacks and insisting on genocide against a foe they cannot defeat, and with each failed attempt they lose more. This reality hasn't deterred them, and a refusal to accept these consequences has made groups like Hamas popular. Yeah this situation sucks but what caused this was a nation ignoring the realpolitik of their situation and poking the bear rather than trying to achieve peace, choosing pride over pragmatism. They are the ones who can end this conflict any time they want but it will mean giving up on some of their unattainable goals and laying down arms. Israel has all the cards and going all in against them, reality be damned, will yield tragic but predictable results.