The alternatives that coal miners have are garbage. They are being asked to leave union jobs with decent pay, decent benefits, protection from unfair treatment, and embrace radically lower pay, radically worse benefits, and active unfair treatment. You can't expect anyone to get excited by those prospects. If computers were outlawed tomorrow, would you sign up to stock shelves at Walmart with a smile on your face and with desire to gather in the mornings and sing the Walmart loyalty chant or whatever it is they sing?