I view the history of the relations between Jews and Muslims from 638 CE to 1917 CE as one of unity and peace and cooperation against a common enemy, the pagan trinitarians (descendants of the ancient pagan Roman Catholic Church).  All of the things that Christians accuse Muslims of are things actually the Church invented.  Examples: 1) "a Holy War."  A Crusade for Christ is a holy war.  Jihad does NOT mean holy war.  Jihad means to struggle for the sake of God.  For example against oppression, colonization, slavery, imperialism, and injustice.  2) The myth that Muslims are commanded to kill all infidels (supposedly all non-Muslims).  In fact, nowhere in the Qur'an are Muslims commanded to go out and kill all non-Muslims, such as Jews and Christians.  In fact, in an Islamic state, they are commanded to protect them and their houses of worship.  It is only when they are fought against or their is oppression or a citizen does not pay his taxes (jizya) that Muslims can fight people of the book.  On the other hand, Christians for two millenia have slaughtered Jews and Muslims, ie. the Crusades, Inquisition, Pograms, the Holocaust (which was sanctioned by the Roman Catholic and German Lutheran Churches!)  Prior to the second vatican council in 1964, the Catholics accused the Jews of Deicide, the killing of their god, Jesus.  Which was the main cause of 2000 years of slaughter that Christians did to Jews in the name of Jesus.  3) That Islam was spread by the sword.  In fact, Catholicism was spread by the sword, and when Islam came to them and the Catholics realized that with a common sense religion like Islam, they would not have to believe in such silly things as a man-god (God incarnating as a man), the trinity, that God has a mother and a son, etc. many Catholics and Pagans converted to Islam of their own free will!  4) Clerics preaching hate from the pulpit.  Read some of the writings of Martin Luther, the founder of the Protestant Church, such as his book, "The Jews and their lies." And also the teachings of numerous popes, that is true venoumous hate!  5) That Muslims can't live together with Jews in Israel just because they hate them.  The fact is that from the time that the Romans kicked the Jews out of Israel in 135 CE, the Christians would not let the Jews come to Jerusalem until 638 CE when the Muslim ruler Omar liberated the Holy Land from the Byzantines, and allowed the Jews to come back to Jerusalem.

 I think it is unfortunate for Jews and Muslims to now demonize the other and to use sacred scripture to accomplish that goal. Both need to live together in the blessed land and worship together as the only TRUE two monotheistic religions on this planet. Both worship the God of Abraham, the father of Prophets Ishmael and Issac. The Arabs and the Hebrews have the most in common as compared to anybody, even their language, which is the life blood of a nation is extremely similar. They need to live in peace and harmony.

I think the original root cause of the problems between Jews and Muslims are caused by 2 main groups.  The first and most dangerous are Muslim Extremists who use the beautiful religion of Islam and distort its true meaning to kill innocent civilians such as the instigator of this whole conflict being the Grand Mufti of Jerusalem from 1921-1948, Mohammad Amin al-Husayni.  He used Islam to cause hatred of the Jews by the Arabs.  The other religious influence that is the cause of this conflict comes from the ideology of The Muslim Brotherhood, Sayyid Qutb, Rashid Rida, and Yusuf al-Qaradawi, all of Egypt, that inspired the charter and agenda of Hamas and Al Qaida, that being virulent Anti-Semitism (conspiracy theories of Jews running the world, banks, media, etc. with ultimately the goal of killing all Jews).  

The second being the Secular Marxists/Socialists: European Jewish Nationalists (Socialist Zionists) and Arab Nationalists (The Baath Arab Socialist Party ).  The Baathists (in Iraq, Egypt, and Syria) role model is Joseph Stalin (1878-1953).  And the Zionists role model was Karl Marx (1818-1883).  They both despised religion.  Examples of Zionists and Baathists are David Ben Gurion (1886-1973) and Gamal Abdel Nasser (1918-1970).  Socialist Zionism is now called the Labor Party in Israel.  They were fundamental in trying to rid Judaism from Jews when they came to Israel.  They wanted a secular socialist state with no attachment to Torah Judaism.  One of their moves was to establish Kibbutz's (communes), which are staunchly anti-religious.

If we focused on the traditional meanings of our respective religions, i think that we would find that we have a common heritage, one of covenant and tikkun olam, making the world a better place, to rid the world of idolatry and polytheism and paganism. Lets work together on this common goal and live in peace.