If the evidence is genuine, then there is really no place in society for people who do this. Calculated and sadistic cruelty to animals, especially this extreme, is a very strong indicator of future calculated and sadistic cruelty to humans.
I have no doubt that the evidence is genuine. Animal rights groups are not above torturing animals to prove their point about how much animals are being tortured.
I would bet anything that those abusing the cows in the video are members of the animal rights group. If proven, the farmer should file a lawsuit against them, hopefully for more in damages that they are able to pay.