Okay, gonna say what nobody wants to hear.
So, what about the wolves that have come out of Yellowstone, gone into neighborhoods of Jackson homes and killed their pets? What about the wolves that have pulled down horses that were tied to their trailers while camping? Um, what about the wolves that are going into populated areas and killing animals?
The wolves did not stay in Yellowstone, they are following the herds leaving Yellowstone for winter and coming into towns and killing livestock... The wolves have decimated the elk/buffalo herds in Yellowstone, they no longer allow moose hunting because the wolves have killed them in the same area.
There is no possible way, except culling the packs to keep the population down. When the wolves were brought back into the yellowstone eco system, they brought Canadian wolves, not the same wolves that used to roam here. These are bigger, more aggressive wolves. They kill to kill, not just to eat.
Go ahead, blast away. Until you have gone hiking and have a wolf follow you from 20 yards away, step for step, until you have run into one while jogging on the trails, VERY close to town, until you have seen the damage they do to livestock, in their own pastures, close to the farm house, then maybe you will understand the need and reasoning behind killing them.