I agree with your general point—that is the concept of Richard Dolan’s breakaway civilization.
However—I do not think this is a case of either/or.
I think it is both.
The Deep State is playing catch up on legitimate non-human technology.
Richard Dolan, Joseph Farrell and the Dark Journalist (Daniel Liszt) are solid on this topic.
Most of publicly known science is obsolete trash—as Terence McKenna said “designed for making toys for well behaved children”.
I am unfamiliar with the people that you mentioned.
Besides the mere existence of the advanced technology, what evidence or arguments do they provide for the extra-terrestrial origin of it?
Advanced tech in and of itself doesn’t require alien life.
My argument is that alien life doesn’t exist and is being used as the “limited hangout” for the government created tech that is being hidden from us.
All of the evil things they do to us involve “limited hangouts”.
JFK => “Russia did it and we needed to cover it up or else we would have gone to nuclear war.”
COVID => “It came from a lab in Wuhan. We didn’t create it ourselves for the purpose of transferring trillions of dollars, ushering in a bio-security state and stealing an election. The Chinese did it and all of that other stuff just happened by chance.”