Fairness is an elusive goal. People who work half time (perhaps because it is their second job) might find it unfair that the disabled person receives twice as much pay for the same amount of work. Young people are also exempted from the minimum wage. As inexperienced workers, they can't produce the same value for an employer as older, more experienced workers. In 2013, New Zealand recognized that minimum wage was locking young, inexperienced people out of the job market, and therefore implemented a "starting-out wage" of 80% of the adult minimum wage, saying For young people who can produce at least 80% of the value of adult minimum wage workers, the law no longer prevents them from entering the job market and gaining experience. Since 2013, the numbers are improving, but over 20% of young people seeking work remain unemployed. Working at a low-paying job ("slave wage" is meaningless) is worse than what many people do for income. But it may be better than any alternative that some people have. You do society no favors by banning others from voluntarily acting on opportunities simply because you would refuse them.The starting out wage is part of a range of measures that support more young people entering the workforce (and gaining the education and training they need for work). It will influence the demand for young people by employers, and therefore encourage them to create more jobs.
Your first paragraph makes no sense. The two do the same amount of work (labour), what is different is the amount of output / productivity. As to the rest, all I can say is that if your only goal is maximum employment numbers, then minimum wage makes sense. That is not the only consideration. I don't see a lot of point in continuing this; we both know and understand the other's positions, we just don't agree.
It depends on what you mean by work: effort, or value created. Productivity usually refers to value created, and many workers produce value by tapping on keyboards. Employers are concerned with value created, and switch to machines that produce the same value created when human labor is more expensive. I believe I can express your position in a way you would agree with, but I am not sure you could do the same. But I don't insist on continuing. Perhaps someone else could explain why I believe minimum wage is more harmful than helpful and, if they disagree, why I am wrong.The two do the same amount of work
we both know and understand the other's positions
That's twice now you've groundlessly accused me of not understanding you. I think we're done here.