Where I live there are no free-ranging boar, so if you want to hunt one, you have to go to a preserve. The place I went to was huge (over a thousand acres), very hilly, rough country - in short, it felt more like a "real" hunt than a so-called "canned hunt". The preserve was in the same area of southern Ohio where I hunt wild whitetails and turkey, and I guarantee it's not a 'pen shoot".
I took my boar on foot, stalking, with a bow.
The owner of the place told me that Lou Ferigno (the Incredible Hulk) had killed a boar there with a knife. That was the first time I'd ever heard of that, and I must admit I thought he must be nuts!
I probably wouldn't bother going to a preserve again, but I'm a much more experienced hunter now. I'm sure there are sleazy places out there that do all the evil stuff we've seen talked about here (although "drugging them" is a new one to me), but that wasn't anywhere close to my experience.
And yeah. Guys who consider themselves "real hunters" tend to shun them, because they aren't as challenging as fair chase. But that's not why the "Animal Rights" extremists want to shut them down. They just don't like hunting period. I've already picked sides on this issue, and I'm on the opposite side of PETA, whatever their position is on a subject.