Yes it is, because it's not an economic consideration. Hillary Clinton said she was actively trying to kill coal jobs.......and Obama put in regulations to do just that.....that is not letting the market decide....so be honest.
Honestly coal industry has been shedding jobs in droves for over 80 years. Sorry your bogeymen weren't in charge back then.

Coal mining employment in the US, 1950-2017
Coal-mining employment increased rapidly in the late 1800s and early 1900s, and peaked in 1923 at 798,000. Since then, the number of miners has fallen considerably since, due to mechanization. By 2015 it had fallen below 70,000.