I explained how Israeli actions deviate from both proportionality and dicrimination principles, but I agree that Hamas has not acted by any rules at all.
Lets say you home with your wife and children was bombarded for ten years but no family member had been killed.... so far.
If a chance to stop that bombardment via disproportionate response came up you would seize it. Because at a certain point you say it it's either me or them. This is human basics