I hated that article only because the author doesn’t know anything about what he’s using for metaphors.
1. No dog can guard against wolves. Wolf packs are the apex predator wherever they are.
2. Sheepdogs don’t guard sheep.
PS - The wolves they introduce are not native. Most Americans have no idea that there are different species of wolves. The introduced species are Canadian gray wolves which are very large and go after large prey (bison, elk, moose, cattle, horses). This is an attack on ranchers.