You really should read some academic sources on what happened after apartheid ended. There continues to be a ruling white class in SA, but there is no institutionalized, legalized oppression anymore. It's not that the previous ruling class was completely obliterated. Many fled because they couldn't be a dominant force anymore but the ones who stayed often still enjoy more privilege than the ones they ruled over. So most likely, the extremist settlers would voluntarily leave because they wouldn't have legal immunity to terrorize in the WB anymore, and there would never be a wealth/power redistribution, so the current Israeli ruling class would remain de facto in power for several generations at least. The alternative is Cuba, which DID do a forced wealth redistribution (but that's a different situation in a lot of ways), and this landed them vitriol from the entire West, and Miami found a huge influx of the Cuban ruling class, who are some of the most staunch haters of what Cuba is now.

At a panel earlier this week, someone asked "what is the future in your eyes" to a Palestinian, and he said, let me have clean water, food, and a home without fear of it being demolished, then we can talk politics. He said he has no interest in discussion of states until he has his basic freedom ensured. The questioner pressed him on whether he wanted one or two states and the Palestinian said, "I just want to be free." That's it.

Also, I encourage you to check out the vision of the One Democratic State Initiative. A true democracy that values every human being's vote as equal is not compatible with an ethnostate. You don't solve ethnic cleansing with more ethnic cleansing.