So far the only problems have been in the U.P., but I'm sure a few have made it down to the northern L.P. as it's only a 5 mile walk across the ice at the Straits of Mackinac.
I've read that each wolf consumes about 25 or so deer per year. The DNR estimates there are around 700-800 wolves in the UP (IMO a really low estimate) so when you do the math it's clear they have a significant impact on the herd - to say nothing of dogs, cats, and domestic livestock! Wolves are at the top of the food chain so they're population is either controlled by man, or when they run out of food.
Our first (legal!) hunt is scheduled to take place soon - if the anti's don't block it. A small number of permits will be issued in areas where they've had the most problems.
Wolves are still legal game in Alaska. It was aerial shooting that was stopped.
I think it was an episode of Wild West Alaska where they did a segment on restoring some shotguns and the firing mechanism for an old single engine plane where they mounted 4 or 5 semi auto shotguns under the wing to use for shooting wolves back when it was legal!
We've seen wolves here at the house several times the past few years. Have to take precautions whenever we have the dog outside.
Couple years ago had one about 50 yards from the house, acted like he owned the place. Story had a happy ending.