If you ever really want to try and understand people like Muhammed or Moses or Jesus or Baha'u'llah or Joseph Smith or whoever and their early followers....look no further than David Koresh, Jim Jones, or Charlie Manson... I'd be willing to bet, their psychological profiles are one in the same.
I would not argue with any of that - except to highlight differences between the respective cult leaders' willingness to resort to violence. However, a distinction is made a distinction between "bona fide religions" and "cults" and Islam, like the "Church" of scientology, continues to display features that place it firmly in the latter category.