An abductee told me that the grays are artificial biological beings which serve as remote "manipulators" which are animated telepathically from a considerable distance. They are of no value, even to themselves.
There are other sources who say the same thing. Look for "Alien Interview".
Thanks, I’ve heard similar stories before, also about how the manufactured ones from the oceans are from automated bases and move if we ever attempt to get close to them etc. I did watch the alien interview years ago. And the Valiant Thor transcripts from ages ago. They all have the same message.
L A Marzuli has interviewed several people who claim they were abducted.