To me this sounds more like an attempt to square your observations with a predetermined world view. Of course there is a way for a naturalistic worldview to convert to a supernatural one. Its just not one you are willing to accept. So you adopt a new hypothesis. Sort of like when the world started cooling off a bit, so Al Gore's scientists invented "Climate Change" to replace global warming.
Please understand that it makes very little difference to me whether you believe in God or not. But I have run into more than my fair share of atheists who found God in their lives. I can assure you that some of them had not one ounce of exposure to spirituality from birth. Some of them were born behind the Iron Curtain. This is the long way, and the nice way, of saying your theory is easy to disprove. The fact is your own prejudices force you to rule out the possibility that some people come to God because they allowed God into their lives. That's the way it works. Again, I'm not telling you to give up your atheism. I'm just reminding you that you have absolutely nothing to lose if you allow yourself to keep an open mind about these things.
I use myself as the evidence for that statement. I have tried for years to find reasons to convince myself that God exists and have made absolutely no progress. At this point I’ve completely given up on it all and concluded that it’s not actually possible. Even if I heard God’s booming voice from the sky, my mind would easily find some way to dismiss it just like I dismiss great many things. It is actually impossible for me to imagine a scenario involving convincing evidence for supernatural things. It doesn’t even need to be supernatural things, I don’t even have faith that the sun will rise in the morning but I simply don’t get surprised when it does.
The closest I’ve ever gotten to faith is neutral agnosticism. If somehow God does exist, what is the reason for this? Why does it have to be so hard to believe even though I want to believe? I’ve read the Bible but I can’t remember a passage relating to this. It says “Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you.” (Matthew 7:7)
How many more years?
"Climate Change" had been in use for decades before a single "Global Warming" paper was published in this recent panic.