"Patriarch" is not a Catholic title. It is an Orthodox title. This guy is not Catholic. He just has the job of relaying Vatican concerns to Israel. I think he will shortly no longer have the job.
The Pope is Patriarch of the West. And there is indeed a Latin Patriarchate of Jerusalem (just as there is a Greek Orthodox and Armenian patriarchate there). Michel Sabbah was the first Arab to fill this position.
Arab chr*stians (and other Middle Eastern chr*stians) are rabidly, fanatically anti-Israel. The only people who don't get this are secular Zionists and American Judaeo-chr*stians.
The historical chr*stian churches have always believed they are the "new Israel" and that the Jews no longer play any special role whatsoever (except perhaps as the "enemies of G-d").
False statement.. the Church does not believe that.. perhaps some non-Catholic fundamentalists in the US may have believed that