Does the fact that as you go up the educational scale, religious belief goes down, count as evidence against religious belief?
My overall theory is that there, percentagewise, the number of dedicated religious people is about the same in the highest levels of the academic community as there is in the community at large. The difference is that people who don’t have a serious faith still have a vague religious belief in the population at large, but as you move into academia, unless people are serious about their religion, they become unbelievers.
I know that are ex-believers out there who left the fold, but there are also migrations for unbelief to belief. But what you lose at the top level of academia are the people who say "Yes I believe there is a force out there; I just don't believe in organized religion."
May the force be with you.