This was fascinating stuff. As you gents mentioned many people find the possibility of the paranormal being confirmed absolutely terrifying, but I'm personally excited in a weird way; demonstration of the supernatural, even if demonic, would whack a whole lot of people back into shape.
It at least has some Interdimensional nature. Some postulate things that involve the nephilim and things like that and not straight forward fallen angels. There’s a lot of theories actually. And lots of speculation about the unseen realm. A lot would hinge on how you view Genesis 6 & things we find in 2nd Temple Judaism literature.