This is exactly how I imagine the FN have felt about us for the last few centuries. We came in and destroyed whole runs with our pollution and our dams. For those of us that are white, we left Europe in very bad shape, with only a few fish left. I was just reading about how some of the first settlers used dynamite to kill herring in Burrard Inlet ffs. I'm sure it made the FN very angry to see us mistreat the fish.
It's easy to get angry about overcrowding and unsportsmanlike fishing, but as Superbobby said, life is too short. With education and patience we can teach the newbies what it took us generations to learn: that the fish are precious and deserve our respect.