So don't learn from our mistakes, basically? More like: don't criticize others for not learning from their mistakes when you're making a point of not learning

So don't learn from our mistakes, basically? More like: don't criticize others for not learning from their mistakes when you're making a point of not learning from making the same mistakes yourself. He's pointing out the hypocrisy of berating others' treatment of nature when you live where everything natural has been bulldozed and paved over for hundreds of square miles.