Exactly, vamp. What we believe isn't all that important except for purposes of discussion and if it interferes with how we behave towards others. Beliefs (or states of mind) that lead someone to thinking suicide bombing is a good idea, for instance, need challenging and dealing with. Believing there is an afterlife, or not believing it, doesn't really make any difference to anyone except the person doing the believing/non-believing.
That said, I find it interesting from a demographic point of view that more and more people are becoming "Nones".