> The problem is much more likely that the link between productive work and reward has been completely severed for more than 40 years [0]. If being productive reliably led to being rewarded there would be many less problems.

You spent paragraphs arguing against the existence of income inequality, then you finally get around to this statement, which is what people are actually talking about when they say "income inequality", and you agree with it. People are unequally rewarded for their productivity. The description of the first resource in your link even begins "Rising wage inequality..."