. we all know God, regardless of our religion. So we all know God in our hearts/spirits, it is the world, and religion that taints us.
Not true. We are diverse and there are many of us, more than 6-1/2 billion at last count. Not all of us know God in our hearts. Many of us do, many do not. To say that all of us do is naive and underestimates the knowledge and experiences of a large segment of the population.
An atheist will go around his whole life denouncing God or claim God does not exist, but I feel that when it all comes down to it, and you are on your death bed, and you are taking your last breath, I think that will change at that moment for you.
There may be some who experience a change of mind. Considering the millions of atheist in the world, it’s reasonable to surmise that a number of them would desperately reach for God in their last moments. But I disagree that your scenario applies to the majority of atheist.
Besides, the last atheist that I saw die did not have any sort of conversion. No conversions before he died that is. Can’t say what might’ve happened on the other side.