Earlier quoted context omitted.
Flipping the U.S. really is the key to ending this conflict. The U.S. reliably uses its security council veto to nix any meaningful UN response and the U.S. remains, by far, the biggest supplier of arms to the IDF. If the US were to stop veto'ing everything and cut off the IDF's supply of, at least, some types of weapons, the new ground assault would likely end quickly. Unfortunately, that isn't likely to happen. Net…
Why would we expect any desirable outcome in this hypothetical though? So the US flips, Israel is pressured into withdrawing, Hamas regains control of the strip and resumes rocket attacks, Israel is forced to respond eventually. It doesn't seem like a path toward a real solution.
Ending unconditional US support is the only thing that motivates Israel to seek an end other than by genocide, which is a necessary (but not sufficient, on its own) condition for any desirable outcome.