We human beings have incredible imaginations. People will believe just about anything. And the more people around us who tell us something is true the more likely we are to believe it, even if there are NO real facts or data to back it up.
For example 67% of people in a recent poll believe that Bigfoot exists and is either a rare ape, prehistoric man, or the missing link. Only 20% see through the bullshit and believe Bigfoot is a myth.
94% believe in ESP.
24% believe we will be reincarnated when we die, but 36% disagree and believe we will be transported instead to "another dimension" (not heaven or hell, but someplace else).
(Source:
http://paranormal.about.com/library/weekly/aa083099.htm )
The moral of the story: people will believe ANYTHING, even with no evidence whatsoever. We are natural born suckers, it's in our DNA, that's how we were so audacious as to think we could fly, or go to the moon.
I wouldn't give a damn about my fellow citizens' belief in God except for all the fucking wars it causes.