re "dearth of evidence" -
that is really not so. This is just a popular belief that has moved from backroom gossip to mainstream idea.
Well, the nature of inquiry, generally, is to make some observations, postulate an idea or theorem and then initiate some proof. Then, once a theory is established, amend the theory according to the reception of new evidence/ variables.
Most of the argumentation as regards the existence of God tends to presume a desired result in either direction.
So, generally, I don't think that method of inquiry yields unbiased results.
When Einstein was developing his theories, he threw out all preconceptions, including the existence of any preconceived ideas...at all. So, in his mind, there was no physics, no science...no assertions and no denials, just an absolutely clean blank slate.
So, I think that is really necessary for an honest and comprehensive method of inquiry.
"The Tao of Physics" and "The Dancing Wu Li Masters" are two books that compare the world views of quantum physics to mysticism. While seemingly quite odd, they are extremely interesting books. And it seems that there are some very interesting parallels.
For example, they found a "particle" that does not respond to causality...at least not as we understand it. It "just is" and "just does" and is not part of a chain of initiation and resultant effect.
Nikolai Tesla was a big fan of Swami Vivekananda, an Eastern mystic who came to the US around 1900.
Benjamin Franklin and Isaac Newton...two of the world's greatest geniuses, both believed in God. As did Thomas Jefferson and Abraham Lincoln - both minds of great power of intellect and deduction.
Today there are many professional scientists with Phd's who believe in God.
Then there is testimonial evidence. We have the testimony of billions of people over the course of thousands of years that God exists. When data exists in that kind of volume, it is no longer qualitative. It may not be definitive proof, but it is indeed some level of quantitative evidence. It is observed phenomena, by such a huge volume of observers, that it can not be immediately dismissed.
Then there are professional scientific studies on the power of prayer, on ESP and various kinds of supernatural phenomena.
And why have law enforcement agencies been using psychics for decades? and before that, kings using them since civilization began?
Hypnotism is a recognized scientifically provable tool. It comes from shamanism, not science.
So, to utterly and entirely dismiss the world of God and the supernatural, does not seem to fit into a professional methodology of inquiry.