The fact is that automation *is* increasing. In more and more jobs, no human can live on what it costs to have a machine do the work. It should therefore be expected that an increasing number of people will be out of work. (The number of useless jobs can only be expanded so far, and we're already hitting significant back pressure.)
The should be a decent minimal income for everyone, and anything earned at a job should be on top of that. There's the difficulty that we also don't want to increase the population, or to encourage geneotypes that cause people to breed irresponsibly, but keeping people desperate doesn't help in solving this, or other, problems. Probably improvements in virtual reality will act to address the immediate population problem even more effectively than TV did during the last couple of generations. The geneotype problem is more difficult, but also more of a long term problem. At the rate the biological knowledge is increasing, and the rate the tools are improving it should be directly addressible within a generation or two, and that's plenty of time. The current problem is to build a civilization that will be stable for then next generation or two. That implies a decent living (*not* livlihood) and equable justice for at least most citizens. And with the current directions of change the living can't be dependant upon jobs. But you also want to engage people in civil activities. Arts is one choice, so are sports and games. Improved virtual reality can allow one to have the illusion of living in a nearly ideal environment, and moving from there to other environments ad lib.
Please note, this assumes that adequate energy supplies will be available. Solar cells would work in many places, as would wind turbines, etc. But those require ways of either storing the power or of transmitting it VERY long distances. (Solar farms in the Sahara, Mohavi, and Gobi/Austrailia would probably always be generating energy, but transmitting it to where it is currently needed could be a large problem. Storage actually looks like a simpler solution.) Wind power is also widely available, but not reliable in any one place.
To conclude, if there were a guaranteed living then there would be no need for a minimum-wage law, because business would not be able to take coercive advantage of people.