I am by no means a professional archeologist,
Neither am I, but I have been enthusiastically reading and learning about it since 60 years. Also visited many sites.
but nor am I an Ancient Alien Disciple either.
Hmm.....
I will say this, pretty much every revolutionary scientific discovery comes with it scoffers and the establishment within the scientific community mocking those findings because they are so arrogant and self-important they think they literally know everything there is to know about everything as they become enraged if anyone dare challenge what they thought was once true.
It has nothing to do with arrogance or enraged - but simply with people having a solid background being confronted with "nonsensical" or "dubious" claims that clearly indicate a $$ minded Ancient Alien agenda.
Certainly I am not one who categorically refutes "new findings" or alternate explanations, as long as they do not target Aliens.
I find it actually amazing that despite so many archeological findings and thus proof of human genius - Aliens need to come up.
But yeah - its a market that obviously really pay's off to those running it. And it is telling that once "Alien" theories are debunked - you never hear from those dudes again - but they will immediately find the next story to come up with.
For my part I very well remember those two dudes sitting behind me on a bus (Daniken Disciples) about 50 years ago, trying to convince everyone that when they viewed through their telescopes - that they saw green agricultural fields on Mars, and then continued with that "Aztec Space-capsule" - whilst denoting every opposition as being dumb and brainwashed.
I for my part, am constantly speculating about some "very advanced" civilization that might have existed and can be found one day - but due to humans having created it and not some superficial Aliens.
For example, I am an ardent collector of Malay/Indonesian Kris. So I got a large library about this topic - and one about 1200 years old source reported about a mystic Kraton (Indonesian blade-smith site) that produced magical Kris inspired by Gods and Godlike materials from the stars.
Some years later I visited that site and noticed a lot of meteor stones around that site - and an old priest still knowledgeable in Sanskrit brought up some roles, that indicated a blade-smith having experimented with meteoric rock and iron alloys some 800 years ago.
To cut a long story short - some 20 years ago I manged to get my hands (pure luck) onto such a Kris, and yes its real lightweight and far stronger, slimmer, flexible and harder then a high-grade Damascus steel blade Kris. A metallurgical analysis proofed this meteorite material and estimated the blade to be around 600-900 years old.
So now I know about this - an Ancient Alien devotee would only tell you about the Kraton legend of a blade-smith having gotten Alien technology and Alien material and manufactured Kris with mystical properties. Parading around with my Kris and stating that there are no other Kris with theses properties and that such a metal and workmanship wasn't known to Javanese Kris makers until today. (for the last part he might be very well correct).