Of course, I admit it - every war before the modern error targeted civilian populations. Hamas' attack means war. Civilians will die.
many nations got together yesterday, and had things like this to say about your 'war'.
"The summit on Saturday condemned “Israeli aggression on the Gaza Strip, war crimes and barbaric and inhumane massacres by the occupation government”, a final communique said."
"Turkish President Recep Recep Tayyip Erdogan said that Israel was taking revenge on Gazan babies, children and women.."
"“The international world remains immune in front of all these scenes. Who could have imagined that hospitals could be publicly shelled in the 21st century?”"
"the policy of “collective punishment” by killing, siege and forcible transfer, is unacceptable."
"“Blind bombardment against Gaza must stop,” Raisi said, adding that “Islamic governments should designate the army of the occupying and aggressor regime [Israel] as a terrorist organisation”.

Arab-Islamic summit rejects justifying Gaza war as Israeli self-defence
Leaders meeting in Saudi Arabia demanded aid be allowed to enter Gaza, called for cessation of arms exports to Israel.
Hard to argue with what they say.
I suppose Israel could do the same.Hamas can stop the carnage of their people by surrendering.