Any zionist that lives would have to be at the constant mercy of any surviving palestinian, with the full option to kill them with little efgort and no consequence, in such a way that their continued survival is evidence that they were monsters, and every one of their justifications was wrong. Either something like 'anyone who lived in gaza cannot be punished for crimes against you' or something like 'some number palestinians must regularly vouch for every zionist individually, or they will be killed by a third party'

And that would require being okay with, and enabling, killing them. That's still the only way any of them can ever breathe the air of a just world.