We're particularly looking to avoid generic, a.k.a. tedious, ideological tangents.
Using a hyperbole to justify another claim doesn't support that claim, it just sounds poetic to people who already believe it. What evidence do you have that hubris will ultimately kill all of us? Do you have a time frame for that prediction? If not, then it's a meaningless claim.
Please, oh please, show me a system that has increased the quality of life for more people than "capitalism" has.
I'm not saying that we shouldn't conserve- we should- I do- but there are limits, and things take time. If humanity had never built fires because they pollute, we wouldn't be here today. If coal had been prohibited, people would probably still be burning trees as the main source of their energy.