Between 1993 and 2006 more than 1500 people in the United States became sick from drinking raw milk or eating cheese made from raw milk. In addition, CDC reported that unpasteurized milk is 150 times more likely to cause food borne illness and results in 13 times more hospitalizations than illnesses involving pasteurized dairy products.
Whether raw milk is safe to drink depends on the health of the cows, the handling of the milk; the cleaning and sterilization of equipment, and storage time and temperature. Pasteurized which removes over 99% of the bacteria significantly reduces the chance of becoming sick from contaminated milk.
Federal laws prevent the interstate sale of raw milk but many states allow sales within the state. The push, if you want to call it that to allow raw milk sales across the country comes from small dairy farms struggling to survive, health food addicts that believe in the magic properties of raw milk, and right wing nuts who want to abolish all food safety laws.
Well, if people want to risk it, I don't think the government should have to stop them. Who cares? Let people drink contaminated poop milk. They aren't hurting anyone else. As long as the consumer is aware, I don't see a problem with it.
The problem is you can't tell whether the milk you buy in the store is contaminated or not. Even if you open the container you can't tell. Milk can have a high enough bacteria count to make you and your family sick and you will never know it till you're puking your guts out. Milk doesn't have to be sour to be dangerous to drink. The only way to protect yourself is to drink pasteurized milk.
I might agree with you if just the customer drank the milk. Milk goes to institutions, food processors, restaurants, food banks, and your neighbors kids. Thanks to pasteurization, illness from drinking milk is rare so people assume that milk in their glass is safe to drink.