Is that really any different though? I'm pretty sure that the robber barons a century or more ago were employing as few workers as possible just like today.
Tech CEOs say a lot of things. That doesn't mean their goals are likely or even possible.
I didn't say anything about how likely or possible their goals are. But when they spell those goals out outright, I think it would be beneficial if we at least took notice of what it was that they were saying, even if we don't think it's a realistic goal to attain. And what they are saying is highly ominous.
But if rendering the whole of the human race surplus is not on the table, I don't think it's going to take very much to do so to at least a considerable chunk of it. Getting rid of all retail employees, the one fallback option for those who do not have the education to do something better, really doesn't seem that far fetched... already, those robber barons to whom you refer are cutting back on staffing as much as possible, don't you think they will nix the last few stragglers if machines end up becoming reliable enough to do the job, instead? Ditto train drivers - hell, one of the main criticisms against the Eglinton Crosstown on this very forum is that the line is not grade separated and therefore can't be automated, as though that was remotely a negative. And if AI generated art/music doesn't fully eliminate the market for human generated art, it could crater a big chunk of it. Lots of people are not very picky about what they take in, it's just a constant cycle of consumption, so it's not going to be a big deal to them whether said content is generated by a person or a machine. Already, in many circumstances, those who control the purses are hesitant to provide funding for anything that isn't safe and guaranteed to be a big blockbuster, like a remake of a classic franchise. If AI making entire bodies of work for them becomes possible, why would they ever pay another human artist to do it ever again? I've already started getting AI generated music in my weekly Spotify recommendations.
It is a race to the bottom and I for one am certainly not remotely optimistic about what horrors await down the line. Creating and maintaining jobs for real people instead of seeking to squeeze every last cent out of what you have is going to become more and more of a public service/charity.
Technology isn't all or nothing - there is tech that has been greatly beneficial to the human race, yes, but that doesn't mean we have to push the boundaries of what is and isn't possible at all costs, especially when the tech in question appears to offer dubious (a charitable description) benefits to anyone who isn't a wealthy business owner. We have reached the point where it's time to say enough is enough.