A great deal of hand waving and not many numbers. Quick dismissal of the success of Southwest with their Union. A better explanation might be that they have a rare healthy relationship between their management and unions, and the productivity and efficiency they create together.
I don't understand your comment about Southwest. He doesn't give a "quick dismissal," he mentions things about Southwest that are unique and seem to make them an exception to this general trend. What exactly is your critique of his argument? Your comment is far more hand wavy than this article.
