It does seem that the religious (of all persuasions) are confirmed (pun intended) in their beliefs. You try and convince a Birther that Obama was born in Hawaii - or a 9/11 conspiracist that it really was Al Qaida acting on their own, or, for others that they were not abducted by aliens and anally probed, or that there is no Sasquatch, Yeti, Loch Ness Monster, Corn Circles, Area 51, Chemical Con-trails, etc., etc.
And there is little hope for the future whilst the Kennedy assassination still has nuts attached to it - that was 50 years ago.
I worked in mental health at one time and I remember trying to persuade a woman that a certain brick in her house was exactly the same as the others and did not beam radio messages to her head. I even had the f**king brick removed! It then turned out that I had had the wrong brick removed, despite her having marked the brick and agreed with the workmen that it was the right brick! ("They" had changed the brick during the night... she heard it happening but did not tell anyone "because they would not understand.")
I sincerely believe that after a while of believing this garbage, the neurons of the brain reconnect in a way that their delusion is reality.
In being here, I can only hope that the seeds of doubt will be sown into minds that are not yet terminally deluded.