Jewish Scientists have genetically proven both Arabs and Jews are of Semitic origin. Does that not give both the right to Israel and Palestine equally?

The Land of Israel was bequeathed by G-d to the People of Israel, not to the semites or to Shem the son of Noah. The connection to the Land of Israel is not based on race or ethnic origin at all. A person of any race who joins the Jewish People as a convert shares in the Jewish People's right to the Land. The Arab nation has more than 20 countries they call their own. It is only right that the Jewish nation which has contributed so much to the world, should have one small spot on the globe which belongs to it exclusively.