The work ethic problem seems to actually exist (from my limited but numerous experiences, including my own), however I am convinced that it is due to learned helplessness.
Just imagine hearing your entire life that the world is just about to end any minute now, the icebergs are melting, everything is polluted, everything is so very bad, financial depression, no jobs for you, etc etc.
Seems like these generations are under massive assault of negative information every second of their lives.
Is it any surprise suicide deaths are a leading cause of death for younger adults? Sort of difficult to have good work ethic with chronic depression.