You lead off with Buddhism, despite the fact that the overwhelming majority of Buddhists believe in gods and the reincarnation of "brainless minds". I think you'll find that most of the other cults, sects, and religious groups you mention, some of which have relatively tiny numbers of adherents, also promote belief in immaterial "souls". I do not believe that it is valid to try to count the number of different religious sects and fringe groups out there as equal to religions with hundreds of millions of followers. Nevertheless, any way you count the numbers, I still think that you'll come up with the generalization that those who adhere to a religious doctrine believe in immaterial minds that can exist independently of functioning brains. As Dawkins pointed out, people are deeply invested in dualism, and it is a small leap of the imagination to think that minds can exist independently of functional brains, despite the evidence that human minds, at least, cannot.