Seems that our more leftist friends draw on their Marxist leanings in a concept that people should be paid what they need rather than on what they produce.
Let's evaluate that.
Let's say I need somebody to do some grundge work in my business and am willing to hire and train a new employee who has little or no experience. Now I can pay this employee minimum wage on the theory that he will free up some of my time or another of my employee's time who will then be able to devote more time to income producing activities. He probably won't earn his wages plus benefits for awhile, but I can afford to take a reasonable loss during training. As the employee learns the ropes and become more efficient in his duties, he can take on more responsibilities, become more useful and merit more pay. Eventually he may qualify for a full time job in production and be earning the living wage he needs.
Meanwhile, he works a second job to supplement his income while he qualifies for a more lucrative position with my business. If he finds a better job before that happens and leaves, he is easily replaced.
But if I have to start him out at the $15/hour he needs as a minimum to support himself plus FICA, plus SUTA, plus FUTA, plus work comp and general liability premiums, plus all the other costs associated with employing this person, he won't offset enough of my or somebody else's time to justify the expense. So I don't hire him.
At the same time, if I don't pay my good, experienced, already trained production people a wage commensurate with what they produce for me, I will likely lose them to a competitor who is willing to pay them well. And they won't be so easy to replace. So it is in my best interest to pay them as well as I can to keep them and still make a reasonable profit.
The less profit I make, the less ability I have to expand, grow, and increase wages and benefits to my employees as well as hire more people. The more profit I make, the better able I am to pay better wages and hire more people.
That is how the free market system works. Whenever artificially dictated wages and/or benefits are inserted into it, it generally benefits nobody but those in government over the long haul.