Well, maybe Israel, since they are justified in doing so, wants to send a message this time and deter Hamas from firing thousands of missiles at Israeli citizens in the future. Quite frankly, they need to hurt Hamas or there will be no incentive for them to stop injuring, killing, and scaring Israelis.
The bottom line is Hamas does things like this repeatedly in an effort to remain relevant. They get attention and money, from other Muslim nations and those who in general support them including some of the members of our House and Senate such as Omar.
Israel needs to do what they feel they need to do, to protect their citizens just like the U.S. would if we were attacked by thousands of missiles. The U.S. wouldn't cease fire until our mission was accomplished. In other words, Biden's telling them to do something the U.S. wouldn't do, which I find embarrassing. It takes away our credibility.