He thinks a wage floor is a "price" control because he doesn't distinguish between humans and widgets.
Sort of conflating a "support" and a "control" also. I think many price controls have or do involve a cap on the cost of some item.
That's the definition of a price control, isn't it? Capping what can be charged for rent, for a loaf of bread, for a lb. of cheese, for a kW of electricity, etc.
Setting a minimum wage to protect entry-level workers and/or unskilled workers from exploitation just helps the economy. If they have more, they can spend more. Lower-income ppl are far more likely to spend what they have than are highly-paid workers who tend to stash it away for the future. That helps them, but not the economy in general.