When we say “destroy the planet”, it usually means making it inhabitable for human (as we are) life, Mother Nature would recover in the long term, but in the long term we would be dead.
Global population is set to decrease dramatically as industrialization's demographic wave passes. Pollution will decrease with it. It's a plot change many haven't noticed yet.
Climate change skeptics think humans have little to do with climate change and so we are all doomed anyways (conservation won’t help, so YOLO). Definitely Mother Nature will correct it one way or another, and humans could be totally obsolete in a few centuries anyways. I’m not sure if I’m comfortable using this as justification to drive a canyonero.
We are already almost at +1.5° C, we are looking at +4° C at the end of this century with the current trends. The Global population will still be around 11 billion (3 billion more than today) in 2100 (if we are not all dead at that point from wars and famines which is inevitable after 4° warming).