“It really depends on how we adjust to the concept of quite simply not needing the majority of people to do any kind of work.”
Enforced sloth does not a civil human society make, unless the society you envision is, in time, the one the lead character in H.G.Wells ‘Time Machine’ finds at the last point in history he reaches.
Who says anything about enforced sloth? A lot of art and science happens because people need to put less work into staying alive. We don’t HAVE to become slothful with extra time on our hands. We could become a society of the bored and boring marking time until death. Or we could become a society of creators and artists finding new frontiers to push. The choice is ours.