I've often wondered why there aren't more mostly autonomous assembly lines for manufacturing things but I think it boils down to one thing: Cost.
It's cheaper to get a bunch of desperately poor people to build your iPhone than it is to invest in the research and buy the robots that could do it.
Then you have people like Musk saying that AI and robots are going to do all labor, while simultaneously saying entitlements are a huge drain on society. If you take away all the jobs with your robots so you can capture their salaries, and delete all the social safety nets and guardrails provided by government, what are people supposed to do exactly?