It's been offered multiple times by Israel and it never goes anywhere.
Israel cannot destroy Hamas, even if the group goes away, the idea and the hate will form into a new group with a new name.
Regarding your mention of the Geneva conventions below, if they are hiding fighters and weapons in schoolhouses and hospitals, as I understand they have, they are no longer protected targets, they are just targets that can be flattened.
Hamas is filled with cowards who hide behind women and children so that they can cry foul about the deaths, knowing that they don't care about the women and children.
The most shocking thing about this entire war is finding out how many people in the US support Hamas, a known terrorist organization who raped women and slaughtered children on October 7th. I could almost give a pass to all the youngsters born after 9/11 who are getting told a bunch of stupid shit in college classes, but for those of you old enough to remember what happened, and still somehow decide to support Hamas in any way, shame on you all.