"Less work done" doesn't look like a positive change, you can't tax your way out of a smaller pie. Specially if you strive for humanity to produce no pie to start with.
I disagree that increased employment and increased labour always makes the pie bigger. If minimum wage was low enough, we would decommission our cement mixers and use a human with a shovel instead. But that's not an improvement. Automation is happening, jobs can be replaced right now. The problem is that humans are too cheap to bother automating, and that the profits of the automation are not being distributed to the displaced workers.