I fully realize that this article is not nearly long enough to cover all the holes and details of your topic. However, it seems that there are some fundamental issues that are awry...

First, there is no way to disprove that God exists in the same way that there is no way to prove that God exists.

Second, it seems this sort of argument always comes to the same materialistic conclusion — that science and its methodology are the only arbiters of what is true or false; and this is false on many levels. I refer to Chalmers' "hard problem of consciousness" for beginners.

Third, life is not only what meets the senses, but for those who do not know this through firsthand experience, this statement is met with cynicism and derision. So be it, but this does not change the truth of what we really are beyond the body and brain.

Lastly, when you use the word "only" as you did in the second to last paragraph, you paint yourself into a corner. I can argue against your claim that "meaning is essential to us only because we are finite beings." No, this is not the case, but it is close. Meaning is essential to us BECAUSE WE ERRONEOUSLY BELIEVE that we are finite beings. Meaning is essential to those who have never realized that the sense of self, the egoic mind, "I," "me," or whatever you wish to call it, is an illusory and false being made up of psychological conditioning, beliefs, thoughts, memories, and so on. To the egoic self, then, meaning is necessary as a way of finding security in what is perceived as a world that is apart from it. This is the real crux of the issue and not whether a god exists or does not exist, because God is a reflection of humankind and not the other way around, which is a point you may perhaps agree with.

Most likely, God is an invention of man or perhaps an anthropomorphized version of consciousness. As a being with features, characteristics, attitudes, will, judgment, and power, God is simply a reflection of the egoic self.

Using your AI analogy, it is the mind of human beings that is conditioned by input from secondhand thoughts that create gods, ignorance, separation, divisiveness, violence, and internal and society conflict.