If you break down resource consumption. The top 10% consume 60% of all resources and the top 30% consume 85% of all resources. So you could kill off the bottom 50% of the population and we would only have a negligible effect on environmental degradation, if you believe in that sort of thing.
Of course, according to capitalist “natural selection” the top consumers are of a better genetic stock or have superior morals. Ensuring the finest members of our species are the most comfortable.
You can see this system work with such fine specimen like Blankfein from Goldman or Mozilo from Country Wide as evolution in progress and being on our way to a better world.
