The cynic in me believes the goal isn't complete subjugation, but rather forcing them out through suffocation and desperation. Its why it hasn't surprised me that certain voices from the Israeli side have called for neighbouring nations to take them in under 'humanitarian' guises. Its why I also believe the Israelis have no sincere intention to wipe out Hamas, a viewpoint bolstered by Netanyahu's own admission that its in his camps interest to bolster them. Since it allows Israel to prolong their casus belli against the Palestinian people, essentially quashing any plan for Palestinian statehood, and in their eyes hopefully kickstarting another Nakba, allowing their settlers to swallow up the abandoned land. This of course is happening in parallel to the events in the West Bank, where settlers under the indirect blessing of the government and Israeli security forces are essentially colonising patches of territory in a way thats uncannily cutting off Palestinian territories on a daily basis.
Obviously a flat out genocide is terrible optics for Israel, so stepping short of that and inflicting a carnage-filled campaign with the hope that ethnic cleansing serves as an alternative 'kindness' allows them to achieve their goals of homogenising the land without resorting to violently purging Palestinians with the eyes of the world watching. Its also why I believe its no coincidence they've caused the amount of structural damage they have, destroying huge blocks of homes, hospitals, educational institutions and essential civilian apparatus, deeming the region completely inhospitable for years to come.
Now the conspiracy theorists might indulge the idea that Israel knew such an attack was forthcoming and perhaps allowed it to play out to give them carte blanche to - and I quote Jordan Peterson - 'give em hell'. Personally I'm reluctant to entertain such theories, but its an interesting thought to ponder nonetheless considering the increasingly convincing evidence that these warnings were plentiful and timely, coupled to Israeli's sophisticated intelligence network who you'd feel would be privy to such plans well ahead of time.