There can be no return to the peaks and valleys in wolf and ungulate populations of old, with man there to sustain the wolf through what should be his die-off time. Man provides the wolf with sustenance, while the wolf really does a job on what normally would have been the surviving ungulates in the area.
This, in itself might be part or parcel for thereasoning for the peta's, sierra clubs, etc, to populate with wolves and now to stop the wolf shooting/poisoning programs, whatever. If the wolf eventually breaks the rancher, there will no more rancher & we can all turn into vegetable eaters like them.
How many ranchers can go 2 years without any income? On one ranch near Hungry Hill, BC (the owner lost all calves for 2 years along with 1/2 his heffers. It's difficult to feed your family with that, let alone the remaining cattle.

Oh yeah - wolves are great!