Just my opinions here... I am by no means pro wolf but living in MN and having a family that owns a large farm in WI wolf country I don't agree with these facts. The size of the deer antlers has nothing to do with Wolves, at least I haven't seen any studies on it. My father still talks about the old days when he would see 100 deer a day but you would be hard fought to find anything with a large rack. There were so many deer that the landscape wasn't able to provide enough nutrition in those county forests. In theory, less deer means more feed for what critters are there, which can lead to good antler growth. If you are worked up about low deer numbers then follow up with your state DNR. Or try to push for antler restrictions. A lot of people out there have no problem shooting 1.5 and 2.5 year old deer. I see no problem with that, to each their own. Also, they purposely attempt to keep deer #s low in moose country for a reason. Wolves due hurt the ability of the moose population to rebound because they prey on the calves and I believe they end up taking a large % of them. Lets be honest though, the population was in decline for other reasons. People forget that their were wolves in MN when the Moose population was at its peak.
I hunt in both states, still see plenty of deer and yes you have to actually hunt for them. Too many times I have seen people blame not seeing a deer on wolves when in reality they just don't want to put in any effort to hunt.