We are guilty. We are guilty of the point you raise — being prime example of rapacious capitalism, Darwinian survival of the fittest, we put on blinders and waged our own small personal wars to munch away every blade of grass till fields lay fallow. Our promised American Dream.
Capitalism dictates we go nuclear — invest not in thy neighbor. I, me, mine.
We are Wall-e people. Except we might never learn to walk again.
Check out this oracular animated gem, y’all.