There is theological discuss from several religions, Vedic, Hebrew, Christian, to support the theory
Satan can appear as an angel of light. Angels can appear in this material world.
It’s entirely feasible that demons, (fallen angels) could appear in any form they wish if it suits their purpose. And if they wish to deceive people by making them think it’s alien abduction or UFO’s, what’s it to them if they can keep people from turning to the living God and being saved from being damned with them for eternity?
CS Lewis in the Screwtape Letters, does a masterful job with giving insight into the possible methods of he enemy. As he maintains, Satan would have us live a comfortable life and die a comfortable death if it can keep us from ever being shaken out of our stupor to seek out God.
The Harvard professor, Mack, did intensive research into the phenomenon and concluded that there was sufficient reason to believe the beings reported so frequently all over the world and in different eras, were hostile beings from another dimension.
There is theological discuss from several religions, Vedic, Hebrew, Christian, to support the theory
QUITE SO. QUITE SO.
HOWEVER, SOME FOLKS ARE NOT INTERESTED IN FACTS.