Two big weaknesses of the Israeli settler project are:
It's easy for a lot of them to go back home, and
They expect safety and high living standards.
Compare this to the settling of the American west. There was violent resistance from the indigenous that was relatively far more dangerous, but going home meant an arduous months-long journey, and the settlers by and large didn't have a place with high living standards to return to anyway.
Maintaining a civilian occupation when a lot of those civilians can just take a flight back to a comfortable existence is a potentially fatal flaw to the project.
Two big weaknesses of the Israeli settler project are:
Compare this to the settling of the American west. There was violent resistance from the indigenous that was relatively far more dangerous, but going home meant an arduous months-long journey, and the settlers by and large didn't have a place with high living standards to return to anyway.
Maintaining a civilian occupation when a lot of those civilians can just take a flight back to a comfortable existence is a potentially fatal flaw to the project.