Hamas, ISIS, and Hezbollah are like the mythological Hydra.
Cut off one head and two more take its place.
A clever-sounding rationale for not being willing to actually solve the problem.
Curtis LeMay had it right.
"Kill enough of them and they will stop fighting."
That means kill or expel almost all of the Palestinians. That is what it will take to end the war.
And if the Israelis cannot or are not willing to do that, then eventually the Muslims will kill or expel almost all of the Jews in Israel.
It is, after all, what Hercules did and it worked very well.