Are Aliens a Psyops?

I am starting to wonder if aliens are the most craftily designed hoax to cover up recovery of advanced human technology from Atlantis to reengineer. The point of why Europe is never allowed to advance but induced into wars while certain "people" are is asked.

https://en.wikipedia.org/wiki/Ilya_Ivanovich_Ivanov

https://en.wikipedia.org/wiki/Soviet_space_program

https://en.wikipedia.org/wiki/Ratlines_(World_War_II_aftermath)

https://en.wikipedia.org/wiki/Haavara_Agreement