Dario Amodei (Anthropic CEO)'s "Machines of Loving Grace" was the first of these, and if effect explains why others like Altman and Zuckerberg are chiming in.
Amodei's prediction:
1) AI will take ALL the jobs
2) Since people won't have any jobs, the government will have to provide UBI (universal basic income), aka food stamps
This is the most positive spin Amodei can put on the future that he is rushing to create, and not surprisingly people are not happy. The public increasingly see AI as an unwelcome technology that will create more problems than positive benefit.
This is at least part, a large part, of the reason that others like Altman and Zuckerberg are coming out with their own spin on how wonderful the AI future will be - because they realize public perception is massively against them (and also they are a bunch of arrogant pricks who think they are creating god, and are entitled to tell us how grateful we should be for it).