While I would tend to agree with you in that religion exists because people want it to, that could be said about any number of things and ultimately says nothing about the objects and content of religion itself. Surely science, as a discipline, exists only because we wish it to, but that does not make it any less true, i.e. that does not mean that it does not show us the truth about nature. Likewise, this does not mean that there is not a political ideal we should be trying to live up to. Of course, neither does it mean that there is such an ideal. How is this different in religion? So yes, I can't think of a way that you would not be right in what you say, but what is the significance of your comment?