It is also unclear to me why we expect an unskilled worker at McDonald's putting fries into a basket to make a "living wage". These jobs are largely for students, retirees and other temporary workers. A high minimum wage isn't the way to end poverty, no taxes under $60K, needs based UBI and other tax incentives are much better options.
The issue is that business that employ unskilled labor will tend to raise prices but rich people don't shop at WalMart; poor people do. So great, they make more but their buying power may have actually gone down. This is the conundrum. Everyone wants $40/hour unskilled manufacturing jobs making throwaway products that they can buy at the dollar store. You can't have it both ways. People really want buying power, not necessarily higher wages.