I have a question about that. I understand what you are saying, but we don't agree on the extent of the problem.
You are probably familiar with the figures provided by Dairy Farmers of Canada. For instance, the farmer receives only about 9% of the money a restaurant owner makes on a glass of milk. So if the amount is $2.25, the farmer receives about 21¢. The same goes for pizzas sold at restaurants. They cost $18 on average, but the farmer receives only 67¢.
If supply management is so problematic when it comes to prices, why are farmers receiving so little money? Since the producer's price is apparently seen as the main issue, we may expect them to receive more money. For the time being, this will contribute to a difference of a few cents on the product.