In my view the atrocities committed demanded response. How could any state not respond to such savagery?
Hamas need to be dismantled because they committed a genuine act of genocidal barbarity and furthermore have blatantly vowed to keep repeating the same thing. They have been carrying out daily missile strikes for decades and are committed to killing all Israelis. They care nothing for the people of Gaza and have even said, very overtly, that they ( the people) are the responsibility of the UN, not them.
However, it is going to be almost imposible to completey destroy Hamas as it is. As soon as there is a pause or a ceasefire ( which they broke last time by continuing to fire missiles) they use the opportunity to regroup and move their leaders around the network of tunnels. They steal fuel and food from the aid convoys for their own uses.
Egypt will not open its security wall to let the people find refuge ( which would also help Israel finish the job of destroying the tunnel network)as they do not want Hamas or any of the other terrorist groups on their land.
They still have hostages... many of whom have been further raped since they were first taken - and they say that other 'groups' also have some hostages and they don't know where they are. They cannot be trusted to manitain a ceasefire or to release the hostages.
The only solution i can see is one in which surrounding arab countries take action to dismantle Hamas themselves and then clear the ground for a genuine process of peace making.