NDE's can't be shown as evidence for a soul as long as there are explanations that are valid that are explanations for NDE's.
The explanation that seems most likely to be correct to me, which would incorporate the cultural aspect without leaning on the supernatural, is that as death seems imminent, the brain responds with an excessive survival instinct. It would sort of explain the very common trope that you see your loved ones, particularly your children if you have any, before you die (and again it's worth noting we can't tell how 'near death' we're talking here, because there's no scientific distance between near death and death to compare...you pass the threshold of death and theres no way to study your experience). Your brain looks for the things it responded most strongly to: your offspring, making sure your genetic material is passed on, the shared pack or community experiences you had, etc. and tries to use those to sort of act as a neural "defibrulator" shock device. For some, it's Jesus, for others it's Hindu gods, yes, but the brain isn't trying to say those images are real, or even welcoming. It's playing on the fear of that experience to throw cold water on your face, to wake you up, if it can. Otherwise, you'd see Jesus, be like "YES! On my way to good old Jesus!" and oyu wouldn't survive, you'd give up too easily. No one wants to come back and report that in their NDE account, though, that they turned away from Jesus because they were afraid.
It's looking for anything that might give it an edge to continue functioning. This only requires the assumption that life wants to propagate and continue over any other drive, it relies only on the existence of survival instinct, which we know exists. It's just a hypothesis, but there's no way to prove it based on the shifty data set. I think it just fits best with what we know today.