Consider the two following observations...
Randomly assigned individuals to watching a movie about death or a random movie about a very neutral subject. At the end of the movie, ask people whether or not they believe in some sort of god / life force / spirit. In the "Neutral Movie" treatment 30% of the people answered 'yes'. In the "Death Movie" treatment, 60% answered 'yes'. The difference is highly significant
There exist a lot of "god-like concepts" in very different cultures and they are systematically associated with very different mythology.
"Feeling that god does not exists"
Such study would give me a feeling that god does not exist. Below I am trying to explain why.
Humans have all sorts of concept. Some of these concepts are inspired from observing the reality such as "gravity" for example. Other concepts do not result from observing the nature. The first observation (which was inspired from a study I heard of but I haven't found the reference) suggests to me that "god-like concepts" are a human creation not resulting from any reality but resulting from a need to believe in a made-up myth in the face of deep fears
The second observation implies that not everyone can be right as myths (and even the nature of a god) differ a lot from one culture to another. There is no reason to think that anyone would be right.
What is the correct semantic to refer to this "feeling"
I used to be pleased with stating that "God is defined as outside the realm of human thoughts and we therefore cannot argue for or against its existence". However, such observation do give me an feeling that there is no god. I doubt one could consider such observations as being evidence against the existence of a god. Are they arguments against the existence of god? But what is an argument? If yes, can we make logical arguments for or against the existence of a god? Do such observations bring any justified belief concerning the existence of a god?