No need to sell things at that point. Just produce and consume whatever you want.

Fully agree. We need to stop thinking about money, wealth, etc. The fundamental issue is access to goods and services. If it is easy to build an AI robot that can build a few copies of itself which in turn create a private jet using stuff lying around on the ground, I'm not really poor though I have no money (just the robo).

So the challenge for the bad capitalists in this hypothetical is to make sure I never get said robo in the first place. How realistic will this be? Are they that hellbent on ensuring that everyone else is poor?