Galileo gambit: "One day my grandiose fantasies and claims will become an actual discovery and revolutionalize the world!"
But if death-denying fantasies and deities really had objectivity, there would already be no unbelievers. There might be rebels if the "god" was an evil asshole.
The "people are blinded to it" justification is fallacious. But false promises and "enlightenment programs" have been used by quacks to sell snake oil, as well as by cults to recruit, capture and exploit their victims.
The "hiding atheists" suggests that they know "it" exists but refuse to accept it. This is also a false premise, because again, it would be the deity hiding and deceiving humans, since atheists simply don't believe for an obvious lack of evidence. They don't hide from which does not apparently exist.
But why this obsession with atheism from a new age crackpot? Don't you reject the othodoxy of the great religions because they failed you? Why would you now suddenly be in the right, among the confusion, using a syncretic mashup borrowed from what you cherry picked? And what is it that you dislike about non-belief, to preach hope in an eventual universal belief? Universalizing to appeal is distict from evidence.
Is your fear of death really the only reason? Or do you seek to exploit other people's fear of death? Do you need other people to believe to entertain your own eternal-life fantasy? What will happen when you get older and realize that your fear is not as great as it used to be? Why should "science prove it", when science is not in the business of faith affirmation?
And you better provide the incredible evidence for your extraordinary claims, to convince critical thinkers "in 2050". And convince your deities to finally reveal themselves to the world for "scientists" to "prove it". You must be very special if your prayer is more convincing to them than those of all humans past, who also humbly hoped and fervently asked. And all those who tried to mysticly "reveal their own deity", including in some mainstream religions, but somehow only convinced themselves or some fidels.
I know what strong personal experiences are, I have practiced meditation and have had sudden bliss experiences (traditions use various names for this). I also have lucid dream experiences. Personal experiences are not necessarily evidence of an afterlife, even if some perceive them as such.
Others claim to have come back from the dead, consider the hallucinations of some who had near death experiences. We only know about those stories because they were still alive to tell them, there is no evidence that they were dead or visited other worlds. It's not because a medical instrument imperfectly detects death, occasionally producing short false positives, that these patients were really "temporarily dead". Then in many cases these are only claims made by patients who never were diagnosed as dead. Their actual medical record is not public.
It is similar with reincarnation claims and claimants. Like with church relics and alleged healing powers or fundational visions, they were often borrowed or fabricated to give significance to the location as well as to attract tourism and sell services and merchandise.
In some societies, a woman claiming to have given birth to an alligator obtains special status. In others, it's self-harm mysticism. Or claiming to be descending from a notable figure, sometimes even mythological, etc. In some more hierarchical organized systems, it's official ordinance...
Live long and prosper!