I agree with the points you made in the video. Even when I was forcefed believe in beings like that at a young age, I really thought they never bothered me because deep down, I really didn't think they existed.
The other night I was awoken by a bug or spider on my ear, which I brushed off half asleep. I never did discover what it was, but then I could not get back to sleep because I kept feeling imaginary bugs crawling on me. I think it's all the same thing, you mind is capable of creating realistic encounters that never happened.
BTW, what doesthe shirt you are wearing in the video say?