I agree with you,fundamentally speaking. But in a all out war to defeat a tyrant, may at times, require such. Not that they are the target, but the enemy is among them and uses them as shields and also civilian workers involved directly with the war effort, such as factories. Today, thankfully, we have the technology level to pinpoint targets precise enough to avoid some of the innocent casualties and should be used wherever possible. Blanket bombing a target back in WW2 was very common.