If the fenced area was large enough I wouldn't have any problem with hunting it. I have one 6,700 acre block of land I manage and it is crazy to think of any animal wouldn't be in his own habitat and completely wild in an area that big. This isn't but an area 4 miles by 3 miles also. Another way to think about is is if there was a large island, would you have a problem hunting it? Everybody looks for ways to better their odds while hunting. Agriculture fields, bait where legal, hunting bottlenecks of hardwoods, sex scents, food plots, scent blocker clothes, tree stands, rifles that will hit a quarter at 250 yards, etc, etc. They are all shortcuts and a large fenced area is just another, although it probably isn't the easy shooting fish in a barrel hunting that some think. The biggest thing about some of the well managed fenced areas is that the managers spend a lot of time and money introducing better genetic stock, feeding and culling the animals and giving the animals time to mature. And no, I've never hunted one of the high fenced areas.