> Could those consumers just go for pasteurized milk and let others have the choice they want?

People can have the choice they want. It requires that you shoulder the risk yourself, rather than having it pushed on you by someone who is financially benefitting from it.

No, through painful experience we have arrived at a system where people can go to a store and purchase food without needing to develop the expertise and expend enough time to be reasonably confident that it won't kill them.

For the same reasons we also restrict the sale of expired meat or adulterated baby formula.