So private land owners and goverment is limiting the ability to reduce the hog population effectively?

In the past humans having been good at irradicating animals and causing extintions of certain species. I think if we really wanted to knock down the population we could but I guess some people don't have the guts to do the dirty work. Problem with living in a PC world I guess.

I was justing thinking that hog drives (similar to deer drives) using dogs would be affective to pushing hogs to a determined kill zone. Would this be more affective?