First, thanks for a well-researched, informative article.

If I may, I do have another alternative to offer: "Two Possibilities within MMT" ('Modern Monetary Theory'), here in Medium but not behind the paywall.

Among other good outcomes, it ensures enough for all (adult citizens) without having to redistribute anything, it limits accumulation without imposing any arbitrary limit on income/wealth, and it increases sustainability by allowing for an end to the political imperative to maximize total output (in order to maximize employment, total income, and the collection of taxes at whatever rates exist).