“Dismantling Israel” is not a thing. It is not an international law mechanism.
There is no lawful process by which outsiders simply abolish a sovereign state against the will of its people and replace it with some imagined “state for all citizens.
Israel is a UN member state. It has sovereignty, territorial integrity, a population, institutions, borders to defend, and the right of self-defence like every other state.
So when people say “dismantle Israel,” they are usually hiding the operative question: by what means?
Because if the citizens of Israel do not consent to the abolition of their state, then “dismantling” it requires coercion. And in the real world, in that region, with Hamas, Hezbollah, Iran, Islamic Jihad, and a century of violence against Jewish sovereignty, coercion means war, displacement, domination, and worse.
South Africa was not abolished. Apartheid was abolished. Ending a racial hierarchy inside a state is not the same thing as dissolving the national self-determination of the Jewish people in the Middle East and pretending everyone will magically receive equal rights the next morning.
To claim that dismantling a state, a governing structure, means murdering the people who live there is beyond absurd. Apartheid South Africa was dismantled. The white people there were not mass-murdered. The state simply became a state for all its citizens, with equal rights.