Why can the USDA intervene if no interstate commerce is involved? This fine should be appealed in the courts.
Wickard v Filburn
Little bit of a distortion here, they were selling rabbit meat, you cannot run a slaughter house in this country without a license and a food inspector.
I take it you're not familiar with Wickard v Fillburn or Gonzales v. Raich? Look them up and find your answer. Then refer to my tagline for summation.