If an employer can't pay someone what a job is worth, either the job doesn't get done or a machine is found to do it - leaving someone without the opportunity for a job. Yes, it may not be a "living wage", but no wage is even less desirable.
I've started using Taco Bell's remote ordering app. The clerk, seeing how I'd ordered (not using his services), yesterday thanked me for making his job easier. Couldn't help thinking that rather than happy, he should be scared: with all the talk about pushing for $15/hr minimum wages, coupled with automation of order-taking, he's facing prospects of no job instead of an easy one.
I know minimum wage is meant to help, but it only contributes to increased unemployment and inflation.