SinanJew
Your history isnt quite right. They here never called “Jordanians.” prior to 1948 people who lived in the region known as Palestine were Patestinians there were Palestinian Jews, and Palestinian Arabs. (For example, The “Palestine Post was a Jewish paper today known as the Jerusalem Post”)
Once the State was created the Jews became Israelis, Arabs who lived in ISrael became “Israeli arabs” and Arabs who lived in the non-Israel part of Palestine remained known as Palestinians.
Now none of this changes the fact that Palestinians didnt have a separate national identity from other Arabs of what was once Trans-Jordan. As Golda Meir said in 69′
“There were no such thing as Palestinians. When was there an independent Palestinian people with a Palestinian state? It was either southern Syria before the First World War, and then it was a Palestine including Jordan. It was not as though there was a Palestinian people in Palestine considering itself as a Palestinian people and we came and threw them out and took their country away from them. They did not exist.”
However that ship has sailed