I think Dr. Richard Dawkins, among many others, have pointed that out. Most people are atheists in that they don't, for an instant, believe any of the claims of thousands of religions that exist. But, psychologically, they cannot bring themselves to step over the final line and think the same about the religion they were brought up on. That's the main difference between me and most religious believers. I was able to step over that final line and see the religion I was indoctrinated into as a child as being the same completely lacking in any evidence nonsense as all the rest of the thousands of religions.