The recent Arab immigration (late 1800-1945) are not connected to the “900” years you kept mentioning.
I never said they were. What I have pointed out that there has been an Arab/Muslim majority for all that time. They had a tenure on the land that cannot be ignored because a Jewish population that has not been in the land for 2000 years wants to return. Palestine was not a land without a people for a people without a land. There were, and are, Arabs living there.