That is quite common among Muslims and Christians. Only the Jews do not do that.<quoted text>
During a dicussion with an Irani gentleman, I asked why he is so enamoured by this Arabian dessert cult called Islam, and he answered "azthagfarallah". He then went on to tell me that only Shias have the right Islam and rest are all deviants.
The moral of the story is that religion divides people & Mohammadis can never unite.
It should be "Religions divide people and atheists divide them all". I would agree with this.