Yes, the original Christians were Jews, Samaritans and Pagans that lived in the Roman Province of Judea, renamed Palestine. The inhabitants of Palestine, when the Muslims conquered it, were Christians descendants of those people. Many of them slowly converted to Islam, with a small stop during the rule of the Latin (Crusader) Kingdom for a little over a century.
That's the problem. The Europeans have reduced the descendants of the native people of Palestine to an oppressed population under European colonial military occupation.
It's the Jews who were reduced by European colonialists, then Arab Muslim colonialists.
Nevertheless Jews were the people of the place and remained them.
Any Arab or Christian connection to this land goes through Jews.
But that said, it doesn't mean they can't live there. And their rights come from a different category.