My biggest problem is that if that world comes out of the current one, it's going to be one heavily mediated by capitalism (just like everything on my iPhone). So, yes, the robot could scrub the dishes. But once I've accepted that relationship with my robot, version 2 comes out and it has a feature where it doesn't need to spend 8 hours doing dishes because it includes a free trail of the $20/month dish subscription and just throws them out and signs for the shipment of new ones that comes while I'm away at work.
Whatever the exact scenario, the environmental cost will be huge. The COST cost will be huge. And probably the robot will be reporting the details of what I ate and what stayed on my plate back to the company to sell on to the ad sales branch of the company
Life insurance companies and your employer.