People don't leave their homes voluntarily. They leave because of violence or fear of violence. The fact is there were Palestinians living all over the map at the "before" stage. Settlers came to form an ethno-state. The orders given to the Zionist militia commanders were literally "cleanse" this or that village. In the "after" stage, all these people are gone from most of the map and the ones trying to return to their homes are shot dead.
That is ethnic cleansing period. The goal was to create an ethno-state in a place where people already lived. These people have been getting confined to smaller and smaller areas ever since. And the oppression continues to this day.
> Regarding the "State founded on ethnic cleaning", in recent times this includes entire South America, parts of Africa, United States, Canada, Australia, New Zealand.
So what? What's your point?