If you want to know what the natural state for an area is, ask a native person from a population that has un uninterrupted culture, that is if you can find one.
A native person I know often describes a discorded ecosystem by saying: "The land is sick."
To equivocate and to claim all states are equally natural, is to deliberately miss the point.
A healthy ecosystem—and most of us haven't ever seen one—is obviously healthy when you see it.
It's a tautology to say that everything is natural. You could argue that plutonium and dioxin are natural, but without considering the concentration and distribution, it's meaningless semantics.
