The Soviet Union with the help of Yasser Arafat created the ‘Palestinians’ out of thin air to be able to delegitimize and propagandize against the state of Israel. Those that we call ‘Palestinians’ were referring to themselves, in 1947, as Jordanians, Egyptians, Syrians, etc. Nobody thought of himself as a ‘Palestinian’. The Soviet Union and the Eastern Block were able to do that by exploiting the remnants of WWII antisemitism and by tapping into the endless reservoir of hatred for the Jews that lies in the Koran and in the religion of Islam and that you can find in any Arab-Muslim country to this day.