> The end goal of AI is

AI is a technology. It has no goal. You use a tool, the tool doesn't use you or have goals or plans for you.

> In a world where there is no work for the common man.

"Work expands to fill the time available" (Parkinson's Law). Work hours haven't been reduced even though technology has advanced tremendously over the centuries (they have been reduced due to push for worker's rights).

> I'm afraid to imagine what is left there.

Do not define yourself, or your worth, through work. You work to live, not live to work.