Its a race to the bottom. why do we need a minimum wage ? Because scumbag emplyers would pay nothing if they could.But at the very least I would expect a full time job to feed, clothe and house the worker.
Why should every job pay the amount that you think you need? Why can't other people take jobs that don't pay that much?
So don't work for scumbag employers. Or do you think government should ensure you can get a job (that pays what you want) as well?