There will always be collateral damage even though it’s very hard to justify and basically impossible to justify when there’s children involved. I will point out that the line between Hamas combatant and “civilian” can be very grey. Palestinians voted for Hamas knowing they had a mandate to destroy Israel. On the oct 7 attacks Hamas were joined by non combatants. Imagine your army marching down your street on their way to kill your neighbour so you put down what you’re doing to join them and kill your neighbour too. This is basically what happened