The real problem with the minimum wage is that it is essentially "workfare" - welfare for employees in crappy jobs. Why should someone who washes dishes in a dive ipso facto be able to make ends meet as a matter of social policy, whereas a student with no job cannot? Give them both a UBI and let the market sort our the wages.

To some extent, employers will reduce wages if all of their employees have UBI to fall back on, but they won't get it all, because the UBI gives the workers bargaining power. Just as we need to decouple healthcare from employment, we need to decouple subsistence from employment, too, and let employment be how one earns something above subsistence, as just about everyone would like to do.

At the end of the day, if we can have full employment at "make ends meet" wages, then we can pay a UBI at a subsistence level, because both policies depend on there being enough goods and services available to enable everybody's ends to meet. But if that's the case - i.e., if scarcity has finally given way to abundance - why not start with a subsistence distribution and bargain from there?