Urbanites was a bit un-called for.
Now that the beaver has destroyed the road foundation several times and the public had to pay for it, over and over, the mood of the sub-urban dwellers is slowly shifting. Turns out wildlife is not so cute, if you have to pay out of pocket for it.
Maybe the road has to move. It's going to cost money to repair come what may, so maybe shifting it is the answer. I don't know, I just want to point out you're making huge assumptions about what the right answer IS, and also using "my specific therefore defines the general as wrong" arguments. Sure. Your brother had a bad beaver experience. European farmers who lost land to water runoff from bare hills are taking a different view.
So, maybe is not the bloodbath that many people assume