Jews, Christians, and Muslims would stand together saying that they worship the same God against Hindus, Buddists and others. Then when they unite, they would stand against each other saying that each is the 'better' religion and fight each other -- Muslims vs. Christians vs. Jews. And when the Muslims unite, they would fight each other because of their differences --- Sunni and Shiiaa against each other. And after the Sunni unite, they would fight each other because of their differences --- Madhhab this and Madhhab that. And then when the Madhhab unite, they would fight among themselves again on certain sayings here and certain sayings that. When God sent Islam, he sent it to unite the people with the Khatim al Anbeyaa' (the last of the Prophets) under a Holy Book that would stand against the corruption that has inflicted the other Holy books before it... and yet you believe that there SHOULD be 4 (FOUR!) divisions between Muslims. Mohammad (SAAW) would probably cry if he saw how his nation is divided against itself.