This same argument has been made throughout history.

"If we let Black people have freedom they'll murder all of the white plantation owners!"

Now, I wouldn't blame formerly enslaved people for murdering the people who enslaved them, but that didn't happen.

Aparthide in South Africa was ended without the promised (by white people) "white genocide" either.

Settler-colonial powers always think that the people they're oppressing will commit genocide, because it's what colonizers do.

The only road to true peace is full human rights for all.

why would anyone ever implement that hare brained scheme? most people that I've talked to just want an alternative to bombing the shit out of gaza and killing 21,000 people and like 8,000 kids or whatever, they're not saying israel should immediately just like, dissolve, and all israelis should be left to die and shit. They probably wouldn't even let themselves be killed, without a fight, you'd see something more like an impromtu military junta state crop up and increasing radicalization form among it and then on both sides, and you'd just get a repeat of what's currently happening but probably worse. I don't think that would ever reasonably happen, even, this is a dumb bullshit hypothetical. Even the people who want the dissolution of israel want it over the course of multiple years, or decades, even, where some jewish guy from staten island that doesn't even speak hebrew goes back home, and everything just kind of goes back to what might be considered "normal". The logical follow through of "I dislike it when a bunch of people are getting massacred" isn't "well now I guess we can't do anything at all, they can just march in and kill everyone and that's it. woops. look at what you made us do!". Most people recognize this, and just want the violence to stop as fast as possible, which is why nobody's really talking about the long term plans for what might happen after this. They're too focused on the horrible shit happening right now to propose anything.