People having "nothing to do" is a self-inflicted problem of modern societies. There's plenty of stuff to do, all over the place. Just because it might not meet some wholly-arbitrary standard of a 'living', 'sustainable' level of productivity doesn't mean it's "make-work".
People will leave the mundane and repetitive to automation and focus on what they find truly fulfilling, utilizing "creative intelligence".
Creative intelligence involves always striving for the new thoughts, fresh ideas, novel ways to solve problems....repetition makes people mentally weak and depressed.
Many of the problems we discuss today about humans in the era of automation have already been addressed in ancient Indian philosophy (many millennia ago). This isn't new....
