The Jewish lobby (Jewish businessmen, Politicians, and Journalists) plays important role in USA. The US Presidential Candidates must get support from the Jewish Lobby so the they could finance their campaign and also get good coverage in Mass Media owned by Jews to win the election.
So, whenever there is conflict between Israel and Islam, the US presidents always support Israel.
The Palestinian people who live in Israel country treated as second class citizens. They have no vote and could not be voted as Israel president. While the Israel youth could carry guns and shoot them to Palestinian people, the Palestinians are forbid to own guns.