He isn't pretending that at all. He is recognizing that the cost of an employee for an employer is more than merely a wage. And if minimum wages increase across the board, corporations can increase the price of the service proportionally, which in the fields of minimum wage, is no where near 1 to 1. So prices increase at a small rate, pay increases notably, and the world continues to revolve around the sun.
The problem of automation involves the entire price (FICA, health care, wages, training) and "inconvenience" (competence, commitment, needing to be managed) of having low wage workers. Not because the wage went up some percentage.