One elephant in the room that is systematically ignored is population management. If we choose to aim for the economical viable reproduction rate of 1,6-1,7 per couple instead of 2,1 (replacement rate) the population halves within a century, doubling the resources available per capita.
The second issue is on the how we use our resources. We can deploy them far more intelligently. To create "the maximum possible amount future uncertainty", aka contribute to human development. Most usage simply doesn't qualify for this criterium and can easily be discarded/forbidden without any negative consequence to humanity on the greater scale. On the contrary, it would safe guard our future >>
https://gl-10190.medium.com/debunking-degrowth-part-ii-aded18d44652