Klaatu tells Barnhardt's assembled scientists that an interplanetary organization has created a police force of invincible robots like Gort. "In matters of aggression, we have given them absolute power over us". Klaatu concludes, "Your choice is simple: join us and live in peace, or pursue your present course and face obliteration. We shall be waiting for your answer". Klaatu and Gort depart in the saucer.So AI robots had enslaved the galaxy.
The intent of the movie was not to alarm the public about the possibility. Just the opposite. The movie presents the AI robots as being wiser than humans. We should all want to turn our fate over to scientists, who will then turn it over to AI robots.