If the U.S. will cut off aid to Israel, chances are Israel just draws its borders unilaterally, adding East Jerusalem, the major West Bank settlements, and maybe some of the Hordan Valley to Israel while creating a Palestinian state in the rest of the West Bank and in Gaza. 0% chance that what you wrote will actually happen.
Israel has already declared East Jerusalem in its borders. The West Bank settlements and the Jordan River are de-facto part of Israel even if no one officially recognizes it as so. A Palestinian state in the region will immediately resemble the bantustans of South Africa. The claims that Israel practices Apartheid seem doubtful now, but will definitely be true if it annexes the entire West Bank minus a few islands. Inevitably (given that its main backer has cut it off), the crippling sanctions will follow and millions of secular and wealthy Jews with western passports will flee. Hamas will have won the war without firing a shot. At least we can always hold out hope that a charismatic Nelson Mandela-type figure who preaches reconciliation will emerge to save the day.
The ball is always in their court.
