What if they are able to purchase that land themselves at a very low price?
Furthermore, your point might resonate with a small amount of ranchers- but if true it also illustrates to the rest of the country that they are subsidizing said ranchers.
Land would go for appraised value or above. You're looking at more amenity buyers & larger conglomerates with the purchasing power.
Opeds & let's don't do much on their own. Start contacting your elected officials and politely start a dialog with them about why it's a bad idea to divest the public estate from public hands.