Hamas gave it their best shot already. Launched all of their rockets, shot a few hundred zoomers at the concert, beheaded some children and babies in the kibbutz, and now:
Almost all of the elite ones who crossed into Israel are dead,
No power or water in gaza
No food or medicine in gaza
No way in or out of gaza (not even to muslim Egypt)
300k Israeli soldiers at the border, getting primed for invasion with photos of beheaded children.
A force that size, I predict they're going to kill nearly everyone in there. Shell it until most buildings are gone, then the troops go in and set the tunnels on fire, shoot anyone still standing who has facial hair. No more Gaza strip = no more Hamas = no more trouble for Israel for at least 20 years.
They will justify their actions as "we warned them about airstrikes, it's not our fault they stayed, it's not our fault hamas hide in civilian areas, we warned them and they stayed, that's on them." The cucked UN will wring their hands and seethe, but what can anyone do against Israel backed by the US?