No. The oldest human remains are over 100,000 years old. The ancient aliens theory relies 100% on our ignorance of the past, and in particular humans on the globe in the entire pre-ice age (b4 26,000 years ago), ice-age (26,000-12,000 years ago) and immediate post ice age (12,000 to 5,000 years ago) periods. There we are referring to the pre-flood world, of which modern ideas of human history know very little.
My bet is that pre-flood, pre-ice age history contains HUMAN civilizations we cannot imagine. What the ancient alien theorists claim is “alien” influence on some little understood great achievements - all post ice age - are achievements using understandings inherited from unknown great civilizations that preceded them, or were in fact not made by the peoples we assign those things to, but were things made by others who preceded them by thousands of years.
Oh, I agree. There's a lot of "they couldn't have made this without power tools" etc etc. Yeah, y'know, the aliens came here with their interplanetary transportation technology just to show a bunch of cave people how to build pyramids. :^)
We have found evidence of dinosaurs that existed long before man but no alien evidence.
You may be correct—but such ideas are as revolutionary to the modern academic community as the ancient alien claims.
In addition those earlier civilization humans may be so different from us in every possible way that they might as well be considered “aliens”.
One “out there” theory follows yours but with a twist. The highly advanced humans travel into the solar system and create settlements there—then return to Earth thousands of years later and are considered “gods” and “aliens” by the humans that remained and forgot the history.