However your claims here seem very one-sided. For example I've read about how Israel has been trying to provide aid to Gaza but most of the resources have been controlled by Hamas who have been constructing elaborate tunnel systems, militias and weapons rather than improving the lives of civilians.

From my understanding this has culminated into the attack that started the war, and I can understand that Israel can't just sit on their hands while Hamas prepares for another attack.

The civilians of Gaza deserve to be able to live their lives in peace, but I don't see how that can happen if Hamas isn't dealt with.