TBF the worst outcome is famine and mass death of humans which... was somewhat the standard historically (low populations / intermittent famine). I have as much existential dread as you but that's also because I overvalue human life relative to what nature has historically thought about us.
Isn't the jury still out on that statement? Pretty sure we've been experiencing the long-tail cultural decomposition caused by the effects the industrial revolution brought with it with the exception of a 20 year opportunity to change our trajectory as a species. I think getting out of this conundrum alive will require de-segmenting our cultural narrative around how we got here.