If we have been around that long, I wouldn't be surprised if any cultures from that time are swept away.
Some of the advanced cultures also disappear with their entire populations. With no clear migration patterns into other civilizations.
It could be that the "Aliens" of today have given humanity that knowledge to build replicas. Though, I doubt it's a simple black and white story.
I think it is more likely that our governing bodies have both stolen technologies by shooting down craft and likely have sold access to their populations for the sake of getting some advancements.
I doubt even Elizondo would ever get any help in disclosing such a scenario. I am almost sure, that this is a "Disclosure lite".
The truth almost surely too deep for 99% of the population to ever come to accept. Some elements of the story would create too much insecurity and severe distress in the population. So I am not surprised that Elizondo is neutering some elements.
It's one thing to tell people there is other life. It's a whole other thing to tell people that this "other life" also has mental and psychic capabilities that could invade their privacy or that of their president/prime minister/king at any time.
We'd run out of tinfoil in our surpermarkets overnight. So I consider it mentally like Disclosure², a step up from just a regular ET narrative. It'd be hard for people to swallow nor accept.
Disclosure³ is like disclosing that they almost certainty don't fit your typical narrative of "Alien Life" that a typical person thinks of....and revelations of their relationship with us from history.
I am almost certain, based on the Bible, that Disclosure³ will be narrated by the "ET" themselves and it'll be a complete (but very logical sounding) Fabrication.
------------------
Disclosure from the ET's perspective is akin to a rock smashing into a plate of glass. The glass is established notions. A little bit of duct tape (lies) and throwing out some unneeded bits, and you can reassemble the whole thing into a new shape.
While Disclosure as seen from regular (rather hopeful) folk on this Earth is more like hoping that someone who is an ET comes along and builds on the current plate of glass into something more magnificent.
As the "ET" are rather intelligent folk I foresee they will trap people into tight sounding logical arguments. They'll use our own incomplete understandings to ensnare people into believing something which isn't ultimately real.
Don't mind them though, its all part of the process, got to break things to use the elegant duct tape...
"their spirits assuming many different forms are defiling mankind and shall lead them astray"
Yep.
It is probably also a reference that human beings and them will never live together in truly at peace.
They'll abduct, impregnate, then take away the baby....but that doesn't mean they'll ever live together. Considering the Advisors curious stories about Human Groups, I am not surprised.
ET can be ~xenophobics~ (not sure thats the right word) in their own way, despite what they say. If you could feel their mindset and the innate fear they feel at the prospect of not being in control of an individuals responses when meeting them in person. It would tell you alot.
Despite what they project, they'd be terrified to be in close proximity to an unrestrained human being. (of course, there are good reasons, but there is also an inherent phobia in the mix)
It's something akin to placing a person in a lions den. You assume the lions dangerous right?
It's a different story though, if you follow protocols, you are basically in remote control of that human beings anatomy through psychic means. Like a drugged up groggy patient, they feel more confident to have a conversation.
If you've probably read contactee stories you'll notice that often when the individual seems to be in full control of themselves (notice I said "seems") there is a light trepidation in the air. I'll also let you know there is usually supposed to be someone out of sight who can trigger the human beings unconscious state at a moments notice.
------------------
I wonder if Greer would ever acknowledge any of those kind of things. Probably would say only evil ET do that sort of thing...sigh.
Either way, common sense, applies to all ET. If you are in a different environment dynamic it is very sensible to alert and cautious. What normal to human beings is not necessarily normal to an ET.
That's why they run "The Children" (hybrids) through interactive simulations. Then (allegedly) put them through the paces to see if they react normally when confronted with the unexpected scenario.
I'd expect that passivity is their normal reaction to uncomfortable situations. In essence if you were to grab one of their hand violently, they would be startled but wouldn't grab something to pound your head till you let go.
Whereas a normal human being would hardly be passive about their reactions.