The God Delusion- Part 6: How Religion Has Survived the Process of Natural Selection

The God Delusion then goes on to discuss the roots of religion which Dawkins claims come from a defective gene which has somehow survived the evolutionary process of natural selection.  The argument states that religion is a defective and harmful gene such as the common cold that though harmful and useless to the species itself has somehow by chance survived from one generation to the next.  This is Dawkins proof to why we see some form of religious belief in every culture and people group of the world.  In my opinion, this seems like a very far stretched argument for the presence of religion globally.