To be specific, the troubles we are in right now were perfectly plain by the 1970s. We did not seek to switch out, even then: We raced at the cliff.
Anyway, can we agree that these logistic or predator-prey models approximately describe the way our civilisation currectly functions?
The questions are: how else could it function? [I still haven't seen a simple model of that, can you provide one? Use however many derivatives you like, and delayed feedback]; how do we get there from here?; how many people can be sustained? Can the last politician to go out the revolving door please turn the lights off?