I never understood that point. Almost everyone I know works fulltime although they could live a "fulfilling (if somewhat minimalist) life" on maybe 15h/week of work. If minimizing work would be a goal, most people would be able to do it right now.

Yes, this requires employer flexibility and the move from 40h->15h per week grants much less freedom than stopping work entirely but masses of people suddenly being content with a minimum amount of money does not sound convincing to me at all.