The thing is that most of these activist earth warriors live in suburbia and lead lives that are pretty much the antithesis protecting the planet, but think they have the right to regulate all human activity.
Because of the abundance of field crops, game here must be managed so that overpopulation doesn't lead to disease. Iowa is a case study in that fact. 20 years ago then Gov Vilsack was warned that the deer were too numerous and if hunting season wasn't expanded to take more deer disease would pop up. He had appointed hippie environuts to the DNR oversight board and of course we couldn't kill Bambi.
And since the state wouldn't, the laws of nature did. Blue tongue, wasting disease, among others started taking down the herd. Worse, hunters cut back on hunting because all of the diseased deer, lockers didn't want to process them anymore, etc, adding to the problem.
The herds are lowered now, but because of the decreased interest in hunting, I'm afraid now it will be a recurring problem.