The evidence for the supranormal just becomes overwhelming in its cumulative weight.
I think people question your conclusions about that evidence. Skeptics have all of the same sensory and analytical faculties a believers, and so have access to the same evidence, yet come to different conclusions. It's not about the evidence, but rather, how it's understood. Believers in gods do the same thing. Large numbers of them are sure that they have sensed God using the same human apparatus as those who don't say so, like me. I did at one time, but today I understand that the spiritual experience is not an experience of spirits (gods), but of my own mental state, one I once considered represented the outside world impacting on my awareness, but now understand that same evidence differently - an endogenous mental state like the experience of beauty or value or humor previously misunderstood.
It's a common phenomenon. The ancient Greeks did this with the muses. They didn't have a concept for the mind being creative. Creative inspiration was not understood as a product of the mind, but rather, as a received message from a creative muse whispering silently into one's brain. And so, they misunderstood the product of their own minds as having an exogenous origin.
Likewise with dreams, who most understand to be products of their own minds, but others mistake as messages being delivered to them.
And likewise with internal moral conflicts, which are often depicted as a devil and an angel sitting on one's shoulder and arguing through one's ears. When I was a Christian, we were told that the products of our mind like doubt and cognitive dissonance were coming from Satan, who was trying to steal our souls, and they meant it literally.
If you think it is a personal bias on my part, then that might be because I have different beliefs than you and you yourself may also suffer from some bias.
I think his bias is the same as mine, and it is a rational, constructive bias intended to weed out false beliefs: the rules of induction that constrain critical analysis and belief.
I think the analysis suggests some are more sensitive to the supranormal than others, so I have included such things in my analysis.
There's no reason to believe that. My analysis suggests that such people claim to see things not there as described above, which brings us to the problem of deciding if a group sees something another group can't, whether one isn't seeing something present or the other is misunderstanding what it sees.
Do you know how to do that? How do we resolve the matter of whether one group is seeing something not there or the other not seeing something that is? There actually is a good test. Quiz the seers independently and see how well their reports correlate. If most or all give the same report, then they are probably seeing something real. Imagine a color-blind kid who can't tell red from green wondering whether he is being pranked by others the way they conspired about the Santa Claus thing. So, he buys five pair of red socks and five pair of green, has somebody identify which is which for him, he tags them, and has his friends independently identify the color of each. Then he compares their answers to his answer sheet. If they give the same report, he knows they see something he doesn't. If they can't agree, he knows that the opposite is the case.
When we do this with people claiming to see spirits or gods, their descriptions are all over the place. The discordant reports of believers are evidence that they see their own minds.