Could you tell me why you personally believe this stuff when they offer absolutely no proof to their claims?

Like, I can't even believe in bigfoot without tons of evidence.

extra-terrestrial super advanced beings living underground who absorb whatever from our organs or glands is like a thousand times more of a stretch of the imagination that I couldn't even speculate on the amount of overwhelming evidence i would need to believe it.

sure there are some points like missing children that can be proved, but beyond the fact that they are missing is pure speculation.