If that's how you feel, you might enjoy this book:
The greys stink. There are others that do not "rub butts" with the Feds, so the Feds wouldn't know so much about them. Then again, our own government is LIES, LIES, LIES. How is that different from ETs?
The point I am making is that ETs do not seem any more evil to me than humans. We are just as much a demon species as any ET I've read about. Why assign ETs some special significance just because they know more about physics than we do?
They are NOT NICE BECAUSE THEY PREACH A DIFFERENT GOSPEL AND NEUTER CHRIST’S DEITY WHOLESALE.
My experience with the clergy does not give me any confidence in some "Direct From God" status of the Bible. After all, it was the clergy that was the "keeper" of the scrolls for a very long time. They have a vested interest in dictating what we believe because our billfolds follow us into church each Sunday.
Furthermore, I can read the Bible myself. I can tell you that not a single passage in it makes me believe the ETs and demons/Nephilim/etc connection. It is a total stretch of language to make that so.
I may not have anything else to help you with, then.
It appears that your mind is thoroughly convinced of your own construction on reality.
You have been warned of the realities involved and their eternal implications. My hands are clean.
If that's how you feel, you might enjoy this book: