Such a position begs the question. If one only beliefs such things if given absolute proof independent of faith, then such a thought is just as alien to what God provides as not having any notion about it in the first place.
Not to worry, though, every human will be exposed to such beings in due time. It's won't be an enjoyable experience for those who reject what God provides for salvation. Meanwhile, we are also warned no to allow others take our crowns from us.
I don’t quite undeerstand what you’re saying? I think faith has it’s limits. My faith ends with a belief in God, which I cannot prove, but I do not believe in demons, aliens, fairies, etc.
Does everyone get exposed to demons and/or aliens before they die? If so, I would think that there would be more written about it.