A large number of those hunting operations are probably under high fence, and you are right, they do not want to eliminate them.
Texas is big state though and way more people who would like to be rid of them. Granted they are a fun recreational opportunity, but if it wasn't for the non-residents who come in to pay those prices, they would't be worth nearly as much. Most residents have plenty of opportunity to shoot them for free unless they are city folks.
