When you have lots of deer, you don't need to buy meat and therefore can get around the ban.
That said, this is not the only whacky proposal out there. Some people want to ban tilling the soil as well because it releases carbon when the soil's surface is pierced.
Next thing you know, they'll be proposing Soylent Green as the most ecologically safe food source.
Meanwhile, in several states, wild pigs are becoming a problem. They're very destructive to fields, fences and streams. They can become pregnant at 8 months, but usually not until 13 months. They can have 5-6 per littler and up to 1.5 litters per year. They are considered vermin in Texas and several other states meaning there is no season on them nor any limit. They are
not considered a game animal, all of which must be harvested under penalty of law, so they can be shot and left to rot.
Frequently Asked Questions-Wild Pigs - Coping with Feral Hogs