I think an important caveat is that Israel do not literally want all Palestinians to die for the sole sake of them no longer existing. Initially Zionism wanted them off the land so that they could exploit it themselves and their own Israeli working class. But the Israeli economy now relies too much on exploiting Palestinian labor, notably in Israel proper and the West Bank, with large numbers of being going into Israel every day to work. In that they also rely economically on exploiting dirt-cheap Palestinian labor. That doesn't change the fact that they have still been engaging in slow-motion (in the long-run pov) ethnic cleansing of Palestinians, but it is important for understanding how they will relate to Palestinians. Nor does it change the fact that Israeli politicians, ministers and military officials are thinking, saying and doing genocidal shit, but I don't think the Israeli state as a political entity thinks it is in their interests to literally industrially murder every last Palestinian for the sake of it. The geopolitical factors here of brutally beating the Palestinians into submission is also an explicit goal that Israeli and American state and intelligence officials have been talking about publicly and privately.