I believe the evidence points to them being demons, plain and simple. Remember, Satan disguises himself as angel of light, and what do these UFOs demonstrate all the time? A light show!

I read a book called UFOs: What on Earth is Going On? by John Weldon, and another, The Great Flying Saucer Deception (I think that was the title, but the name of the author is not remembered), as well as some other materials whose titles and authors I don't remember (this was back in the 70s, so grant me some grace )

These Christians authors made observations that when you compare the strange manifestations of a UFO contactee who channels UFO beings, with the strange manifestations of an occult seance medium supposedly contacting departed spirits, the symptoms are all but identical: supernatural knowledge, a sense of "cold air", the channeler/medium speaking with a strange voice not their own, objects moving around, etc. In the latter, these are readily known occult manifestations of the presence of a demon, but somehow we are supposed to think that if these symptoms show up upon contacting UFOs, it's not the occult, but science!

UFOs are demonic (not scientific), and this is true despite all the Star Wars, Star Trek, and other sci-fi shows/movies/books/comic books to the contrary!