Ep 55 Is wage "slavery" (ie working at McDonald's) a form of slavery that ought to be abolished?

The Mindcrime libertyshow discusses whether wage "slavery," such as working for McDonald's, Amazon or Walmart at a low wage, ought to be abolished?  Would low wage jobs in large firms exist in a free society?  Would anyone choose to work at these kinds of jobs if better options existed and why do these jobs exist?  What exactly defines slavery? What is the difference between working for amazon as a picker, serfdom and classic chattel slavery?  Does dignity and autonomy matter?  What exactly is a dignified job and would paying them more make them less "slave" like. Why aren't interns, adjunct professors and TA's considered wage slaves even though at times they can make as much money if one does a full hourly accounting?  What does Marx, Hoppe, Nozick and Walter Block agree on and disagree on when it comes to technical economics related to free labor under capitalism and slavery? Are people as free and creative as many of the left libertarians claim people are?  If barriers to entry were removed would there be more small business owners and self employed people?