In the aftermaths of both the First and Second World Wars national borders were readjusted to suit the victors and entirely new countries were created from the ruins of the empires that had collapsed as a result of the conflict. The process continued with the end of the Soviet Union but the new states were constituted within an already existing ethnic and linguistic framework. More recently, the United States has engaged in imperialism-lite, with "regime change" programs seeking to lop off the governments of existing nations by coercion or through military invasion, replacing them with Quislings supportive of Washington's continuing dominance exercised from "over the horizon."
But regime change too is falling out of favor, even if it is currently being pursued in both Venezuela and Iran, eschewing using armed force in favor of "economic warfare" intended to make life so miserable for the inhabitants of the targeted country that they will rise up in revolt and remove their leaders. So far regime-change policies have been a disappointment, with major failures in Afghanistan, Iraq and Libya that relied on military interventions that converted stable countries into hotbeds of insurgency and unrest.
Given all of that, it is extremely audacious for the White House to consider going back to the old Sykes-Picot model of 1916 and seeking to impose a peace plan that will include reordering borders for Israel/Palestine, something that has been tried before in various forms by presidents named Carter and Clinton without any success. The new plan, which is already being touted as the "Deal of the Century," has been the product of a group of Orthodox Jews working for senior advisor and presidential son-in-law Jared Kushner, together with representative for international negotiations Jason Greenblatt and the U.S. (sic) Ambassador to Israel David Friedman.