Interesting, denis, because I think the whole idea is that God doesn't *have* to exist....but is an idea, a tool, a hammer, that can be used against those who profess to believe.
That people believe in God is a truth...and Peter believes truly, and this is reflected. Clearly you felt his belief, and it offended you...so it hit home.
It was by no means intended as a slight against atheists, I assure you, or Dawkins, Hitchens, etc. If anything, it is my middle-finger to my own religious past, to my hypocrite Pastors and Sunday-best, pew-sitting "worshipers" of God.
Thanks for you alternate perspective. It is greatly appreciated.