In the early days of the war, an Israeli minister suggested using an atomic bomb in Gaza. Netanyahu apparently responded angrily. But the scope of the damage caused in Gaza equals dropping an atomic bomb. This explains why Netanyahu responded angrily. He was concerned that the global community would consider this war nothing short of an atomic attack.
As mentioned by Borrell, the Israeli government is using the hunger of civilians as a weapon too. This war is defying all values the free world is fighting for and undermines all those values. It’s not known what is going on behind closed doors in Israel, but the free world will have no other option but to stand firm against these destructions.