I don't think anybody has made the claim that they didn't or don't exist.  Also if you look at the studies that your relying upon if you check the people involved you will find that the researchers had skin in the game rendering them not objective or credible.

As for your attempt to lay responsibility for the Palestinian problem at the feet of the Arabs the notion that this is the result of refugees being dropped into camps for propaganda purposes is laughable. Perhaps the idea of choosing an inhabited land, ethnically cleansing half of its people and oppressing the rest is the source of that instability.

For it was not the countries of the middle east that were hostile to Jews prior to Zionism. Yet somehow European colonialists felt they could take this land without repercussion. As Ilan Pappe said, Zionism is a noble cause, creating a safe haven for a persecuted people. BUT ..CONT'D