They are just some idiots, fooled by other people.They think what they do are great thing, but they never know they have been brainwashed.
Who will be ready to die for some mythical personalities, if they are not brainwashed? These idiots think that if they die for their religion, then they will get 72 virgins in heaven and there will be rivers of wine and towers of gold and diamond available to them. Anyone with an IQ level of more than 60 is not going to believe in any of this.