Hehe... agreed. People say that it's "bad," but "bad" is relative -- bad for humans? Yes! Bad for cockroaches? Nope! They'll thrive!
What's seemingly "bad" for one species may in fact be great for another. We're not really concerned about the "health" of the planet -- we're concerned about earth's viability in sustaining human life... as if the earth would just be fsck'ed without us or something.
If humans are so arrogant to believe that they can even scratch the surface of the earth, well, that's just some kind of Napoleon complex. The earth will chew us up and spit us out, and in 100,000 years (a nanosecond in the grand scheme of things), the earth will repair itself and be on its merry way. Without the burden of us. Happy cockroaches.