Thanks for this article; you have expressed major concerns that have been voiced in other places by renowned economists, too. So you are in good company.

The title, and partly the content, reminded me of https://en.wikipedia.org/wiki/23_Things_They_Don%27t_Tell_You_About_Capitalism and to a certain degree of https://marianamazzucato.com/books/the-value-of-everything ; perhaps you can find some arguments there.

Your comment about the US middle class is confirmed by an Episode 4/8 of the BBC documentary "Why Poverty", https://www.bbc.co.uk/programmes/b01pblv4/episodes/guide , which shows the evolution of the US income distribution over the past 50 odd years, something which also appeared in the Financial Times, too.

Last, but not least, with regards to a potential model for society, you may be interested in https://en.wikipedia.org/wiki/Looking_Backward . It is a very positive description of an ideal society packaged in a short novel.