But un-restricted capitalism is literally the stereotypical paper clip AI. It will seek out maximal profit at every cost. As per the very Adam Smith, it only works well in small, welll-regulated markets. Let the government do its job, and capitalism its own.
The article is about degrowth.
The paperclip thought experiment is a stupid thought experiment. An AI that had the executive functioning to improve its entire substrate (e.g. rewrite the entire TSMC Nvidia chip and software supply chain) would require the same higher order agency that would stop it from destroying the world to turn it into paperclips. It only seems plausible if you spend all your time disembodied from reality browsing lesswrong.