The thinker you're missing in this overview is Vaclav Smil. Interesting that you've missed him, considering how prolific he is as a writer, and how clear-headed he is as a researcher and futurist. But you aren't alone in leaving him out of the discussion; he's the smartest guy nobody in the general public ever heard of. (Although to be fair, Bill Gates is familiar with his work.)
Vaclav Smil is neither a cheery techno-optimist or a catastrophist doomer degrowther. Above all, he's a Realist. He does, however, recognize an important role for degrowth. And he understands that the sort of optimism that all of our problems are on track to be solved by technological innovation--just because "human ingenuity"--is a faith-based paradigm, not an evidence-based one. Smil also seems to me to have more respect for the natural world, and for keeping the web of life in our interconnected ecosystems healthy, than the economics/business/cybertechhies, who treat the planet ad a bank vault while ignoring its life-giving features in order to spend their time indoors, surrounded by machines and videogame "environments."