Therein lies the issue; your predetermined attitude and position. You have already made up your mind there is no God and any response or answer you may receive, if you bothered to search, would be nonsense.
Yes, his attitude and position prevent him from believing insufficiently supported claims. That is by design. He and other empiricists have told you what would change their minds. And there's a good reason for erecting that barrier to unjustified belief. It works well at preventing one from accumulating false and unfalsifiable beliefs. Critical thought and empiricism inform us of which ideas are useful and which are not. Unjustified beliefs are useless whether they are the conclusions of fallacious arguments or bare, unsupported claims.
These kinds of ideas can't be put to any practical use for the believer apart from comforting those that are comforted by such a thought. For the critical thinker who adopts those standards for belief, unsupported claims can be rejected out of hand (Hitchens' Razor), and unlike sound arguments, fallacious arguments can be successfully rebutted.
Replacing faith with reason applied to evidence as the only path to truth about reality has been a successful innovation in the history of intellectual progress, possibly the best idea man ever had and responsible for most (if not all) improvements in the human condition since the Middle Ages.
What you suggest is that he revert to that method for belief so that he can admit a god onto his map of reality. He won't without compelling evidence, which is your complaint and criticism.
Why should God reveal anything to you?
Nothing that exists needs to reveal itself to be sensed and experienced. Nothing that exists can hide from detection by the right sensor in the right place and time. If a god exists, it is detectible. Presumably, you claim to have detected it, or else why would you think it existed? Did you use your nervous system to do that?
Incidentally, I don't believe that these intuitions represent sensing any external reality. I've had and misunderstood them myself in the past. What we are detecting is generated by our brains. Man has a long history of mistaking his creative intuitions for external realities and messages. Before the ancient Greeks had a concept for the mind creating ideas de novo, they attributed these insights to muses whispering in their ears. Internal mental struggles were (and still are by many) seen as a devil and an angel sitting on opposite shoulders arguing through the ears. And people still think that their dreams are received messages rather than constructs of the creative mind. So, it's not surprising that when their nervous systems report a euphoric sense of connection and belonging that they understand that as experiencing a deity rather than as experiencing their own minds.
Passing on of traits do not constitute evolution as in the theory of changing forms
That's just a part of theory. In addition to heritability, you need to throw in random genetic variation and natural selection.
So you and others say. That doesn't make it true
Correct, but nobody is claiming that they are correct because they say so except perhaps you, as when you wrote, "
There is simply, absolutely no proof (ok evidence for you) that there is an "Unknown Common Ancestor" burgeoning out to eventually morph to become gorillas, chimpanzees and humans. Not one shred. Not a hair. Nothing. Zilch. Sorry." The empiricist makes claims of truth based in reason applied to evidence, which demonstrates when an idea is correct - not mere insistence.
And to correct your comment, thanks to a faith-based confirmation basis that filters out contradictory evidence to defend such beliefs, there is no evidence of great ape common ancestry FOR YOU, but plenty for the open-minded thinker capable of evaluating an argument for soundness and willing to change his mind in the presence of a compelling argument.