No. Don't you think it might be a good idea to understand that upon which you choose to opine?

Prior to the 7 th century the Arabs were a polytheistic people. During the 7th century Mohammed was purported to have been visited by an angel, and experienced a revelation. The old testament of the Hebrews was the basis of the Koran. The new religion (Islam) accepted the old testament prophets as their own, and further accepted Christ (not as the messiah) as another of the prophets. Supposedly Mohammed is the greatest of the prophets.

As such Judaism and Christianity were regarded as forerunners of the new religion. Because of this tolerance was granted to them in the hope that eventually they would see the light at a future date. As such followers of all three Judaeo/Christian religions were people of the BOOK (Koran). At that time there were a number of races that worshipped pagan gods. ... Zoroastrians, etc...who were not accorded the same privilege. For these people conversion to Islam was spread by the sword.

Out of political and religious fervor western Europe embarked upon the Crusades at the end of the 11th century which last approximately 200 years. At that time a wedge was driven between all three people of the BOOK. They have remained devided ever since further driven by territorial, religious, tribal and national hatreds ever since.