Maybe if the US state department and Congress didn't actively work to fund this assault, and the US President didnt just give more military aid to support the destruction, then it wouldn't be inevitable.
Letting Hamas stay in Rafah and boast how they had defeated Israel is absolutely unacceptable to the voters in Israel. It would lead be a model for using hostages and human shields in future attacks. Short of sending our forces to fight Israeli forces no pause or end in miliary aid will be enough to stop the clearing of Rafah.
Israel's enemies boast of destroying Israel and October 7 was a pretty good indication of what that would mean. Israel has nuclear weapons. Anything that reduces Israel's superiority in conventional forces or encourages Israel's enemies risks turning places Middle Eastern cities into sheets of radioactive glass.
