Never been a country. Palestinians were Jews and Arabs. Not todays "Palestinians". They were created out of whole cloth, they are no where in history. Easily proven.
Jew and Arab are ethnicities. Palestinian is not and indicates a resident of a region, which is what a country is. This argument of yours is just a way to dehumanize the long-time occupants of that country in order to justify the covetous people who are openly stealing their land.