> IMO the only way to mitigate the onslaught of climate change is to do a controlled contraction of the world economy
This straight up does not work, it's too late for that. It might be tempting as a philosophical thought but contraction just cannot work. It might have been a viable option in the 70s or 80s but we're past that point and it's too late to change the past emissions.
Even the Paris agreements are referencing carbon removal technologies because everybody realized that's the only viable solution at that point.