They have never left in great numbers like the Jews did. Especially the city of Jerusalem is important to Muslim faith. Palestinians should have their own country as well as the Israelite. Why cant Palestine have their own land?

Because there is no time in the areas history that they have not lived there. And why do the Jews get a home land on what is Arab land, and then the Arabs have no home land. Israel is a holy place for Arabs as well as Jews, throughout history this land has bee important to the Muslim faith, especially in Jerusalem.