However you're an absolutist and I am not. Apparently you are already convinced that all is lost and there is no hope. I am not. There is no point in eloquence or even elegance when describing an all is lost scenario.
The extinction en toto that you envision is irrational. Yes we are astoundingly dense and fairly stupid and of course greedy but we are also amazingly inventive and when push comes to shove ... we can shove pretty hard!
Look at how the Japanese went from the middle ages to modernity in fifty years? Astounding and absolutely impossible right? But they did it.
Look at the manufacturing totals of America soon after Pearl Harbor. Also astounding. We went from near zero (not quite of course ) to tens of thousands of planes a year, tens of thousands of tanks even etc. it is phenomenal to read about.
Will we is another story. Better it should be described as when will we!!! When will we begin the large scale survival mode? Not if we will but when!
Wild nature is a likely loss in that we agree. Lions, Tigers and Bears Oh my??? Um...nope no room no more!!! No Polar Bears except maybe a few. No elephants except in zoos. All the Earth gone anthropocene. Yeah that is probable and given our stupidity maybe inevitable. Oceans devoid of fish? Yeah possible.
An Earth without humans ...I don't think so! We are survivors of even the worst... we are survivors of even us! A domesticated Earth? Like a big farm devoted to feeding 12 to 15 billion people... sounds like something we would do to paradise... it really does.
We may have made paradise into hell but we will still be looking for an affordable apartment there just like we do now.