I guess people will always ignore history or pretend that they are different. Rome, Egypt, the British Empire, the Incas and Aztecs… to name a miniscule number of powerful empires… all faded away. America is no different at all. America and all that exists on Earth right now, will disappear. From a macrocosmic point of view all of the things we get so worked up about are but tiny moments in history and no matter how much destruction we cause or how big our footprint might become, it actually amounts to nothing. Ten thousand years from now no one will remember us (if there is anyone to remember us), but life will continue and the natural world will regain its balance.
I'm certainly not worried about the survival of Mother Nature, but about us. In some ways you can say we are the stupidest organism ever to have come onto the evolutionary scene: a creature that actively ignores its own health, destroys its habitat so completely as to make its own survival doubtful, and, though ware of its foolhardiness, completely ignores what is right before its own eyes because it cannot stop its cravings.