Maybe as a punishment. It wouldn’t solve the problem in the correct way unless the taxes were MORE than the cost of paying a livable wage. Because the taxes would, at best and very optimistically, go towards programs that then give out money but only for very specific things like Medicaid or SNAP. It would be better for everyone if those employees just got the money as cash to use as they see fit rather than as a benefit that has to be used on certain kinds of food.