Regulators can be purchased.
> If people allocate resources in a way consumers don't like they go broke really quickly. That is one of the reasons free markets are so successful - they punish people quickly and effectively for bad decisions no matter how much economic power they used have.
That's not true. In fact, the wealthy are uniquely able to lose money for long periods of time, producing "loss leaders" to drive all competitors out of business and monopolize markets. In recent decades, this money-losing strategy has been weaponized time and again. It's practically a badge of honor for VC-funded startups to brag about how much money they're spending and losing.
It's also crucial to note that consumers are not an undifferentiated mass. They're not all the same. To go back again to your example of Musk, he become the wealthiest person in the world by selling a luxury brand to well-off consumers. Needless to say, Teslas are not cheap. It turns out that the wealthy catering to themselves is quite profitable, even if it doesn't help the non-wealthy much. And to look at another example, Apple became the wealthiest corporation in the world by selling luxury brands, iPhone and Mac.
> The most democratic successful society in the world is the US
I'm not sure I would agree with that characterization.
> The people who wanted to decentralise economic power were the communists and it turns out committees and big groups suck at making good economic decisions and lots of people literally starve.
Communist countries are not decentralized, nor are they democratic. To the contrary, they're extremely centralized. All power is in the hands of a small group of unelected (or sham elected) political party leaders. And you'll have noticed that both Russia and China have migrated from communism to capitalism while retaining their totalitarian governments. It turns out that political and economic systems are separate. There are plenty of other countries in the world as democratic or more so than the US but with significantly more socialism and social safety nets. The US is practically alone among industrialized nations in failing to have national health care, for example.
> On this point the article descends into nonsense. The authors believe this is a thing and will be proven wrong in an experiment.
I'm not sure what you mean by "will be proven wrong in an experiment", but it sounds like, uh, nonsense? It seems like a strange response, because you've already said multiple times that redistributing money from the ultra-wealthy won't get us very far, so doesn't it follow by your own logic that any significant redistribution of wealth in society and social safety net will have to come from the 99% rather than just the 1%?