Your view is an undereducated view of history, and it is never easy to kill people.
Palestine is a geographical area on the map, not specific people. That land has changed hands more than a Las Vegas gambler, but it never stopped being the holy land of the Jews, and the West Bank is the birthplace of David, Solomon, Jesus, John the Baptist, and other Jewish Prophets.
Saudi Arabia has an ancient history as well, as Jews lived in Mecca before the invention of Christianity and Islam. Today only Muslims are allowed in Mecca, the birthplace of Muhammad, and this is the 21st century. Christian Arabs cannot even gain citizenship in Saudi Arabia, and they are Arabs.