I think the big problem here though, is that humans go from being mandatory to being optional, and this changes the competitive landscape between employers and workers.

In the past a strike mattered. With robots, it may have to go on for years to matter.

A strike going long enough and becoming big enough becomes a political matter. In the limit, if politicians don't find a solution, blood gets spilled. If military and police robots are in place by that time, you can ask yourself what's the point of those unproductive human leeching freeriders at all.

In this scenario wages will have been driven down so much that there will be barely anyone left to buy the products made by these fully automated corps. A strike won't work, but a revolt may and is more likely to happen.