Now this is literally a hydra. Consumerism? Yes! Plastics and the lies of oil industry that 'plastic(s) is/are recyclable? Yes! Politics? Yes! Greed? Yes! Big bubble global economy that nobody wants it to bust/rightsize? Yes!
Musk has said many things about many topics. One that I admired one thing he said some years back was (along the lines of..) "for humans going to inhabit Mars it is better that they make up their own laws, and I (he) hopes they will do a better job than what we did on earth".
I don't feel/believe that Earth will ever be repaired/become pristine while it has humans on it. Perhaps we will wipe ourselves out and 1000 years later, once all signs of civilization will be consumed by floods, earthquakes, nature, the planet will be pristine. It's just a Arrow Paradox (Zeno's paradoxes).
I fear an Idiocracy/Wall-e kinda future.
This cartoon comes to mind: https://www.newyorker.com/cartoon/a16995