As a longtime statistician, I must say that Greenberg is a master at writing a phony statistical article. At the start of the article he presents six accurate statistics about minimum wage workers. All are irrelevant to the right-wing con that he is selling. He then quotes some erroneous statistics and dares not give their source. There have been objective government studies made every time that the minimum wage has been increased. They have never shown that they increased unemployment, let alone by 3%. For all practical purposes in modern times, major unemployment increases have been caused by the Federal Reserve increasing interest rates.
The proposed changes in minimum wage will change total earnings by less than 1% a year. Earnings have been going up three or four times that fast for other American workers while job growth has been steady. To say that this proposed small (less than 1%) increase in total earnings will create a loss of 882,000 jobs is the height of irresponsibility.
If an employer is faced with a minimum-wage increase he doesn't lay off people. He raises prices. His competitors must also. If Greenberg wanted to make an honest case, he would point out that it would have an impact on the cost of living, but much less than that from the raises that we all get.