I have not said that Israel should not exist, that is your extrapolation.
Israel should be held accountable for what it has done, and if it does not further a two state solution, it should be sanctioned by the international community. Current and previous political leaders should be prosecuted for war crimes, and the country should be reformed into a secular democracy.
That's it, that's my stance.
Now, I don't see any of this happening, and I see a genocide being committed.
You're then characterising any military response as genocidal. This no longer feels like an honest response. First, it's Israel that has decided it wants to be an ethnostate, the only reason it would seem genocidal is because Zionists have conflated a religion with a nationality with citizenship. The bad actor of Israel should still be a valid target of military actions just like others are. Would you say that the allies committed a genocide when they attacked Nazi Germany in the second world war?
And where are you getting these ideas of "invading forces slaughtering everybody"? This is starting to sound like Zionist propaganda. I'm sorry but hypothetical threats do not matter when compared with actual apartheid and genocide.
The Palestinians have always been the less violent party. Israel is also a much more violent and offensively postured military actor than Iran, they developed nukes in secret for chrissakes, and they seem to have immunity from international sanctions.
Israel could choose to live in peace by changing it's military posture, by not constantly attacking its neigbours and destabilizing the region. They currently illegally occupy territory in Palestine, Syria, and Lebanon. They could simply stop doing that to begin with.