It kinda doesn't have a body count limit. After October 7, practically all Israelis (even ones who are deeply opposed to the current government, the settlers, etc) said "This will not happen again, ever. And if that means sterilizing the Gaza Strip of all life, so be it."
I heard that from many people, including a 90 year old nun. (I could not have imagined what Sister Claire-Edith would look like furious.) They simply couldn't imagine any course of action that would allow that to occur again.
That didn't mean that exterminating Gaza was inevitable. They would have accepted a complete and unconditional surrender of its leadership, along with freeing all of the hostages, and allowing an outside force to establish a new government.
I'm not saying that's fair; I'm trying to explain what the parameters were.
It's clear (now more than ever) that the current government would have faced a quandary if that had happened. They wanted the war, more or less as it was carried out. But had Hamas surrendered, a lot of Israelis would have said "that's enough", and it would be much harder to continue in the face of public opposition.
That never happened, so it continued. Eventually they did get fatigued, with time more than body count. Hostages were exchanged and Israel started to prep for the Iran war. (Iran played a significant part in funding that October 7 attack, though it's indirect enough that a lot of Israelis do not support this war.)