Oh boy. If you and GP think there's a purely unregulated Laissez-faire market for dairy products in the U.S., you've got some fun reading to catchup on.
What can change things dramatically at least in the upper Midwest is if the US is able to convince Canada to eliminate or greatly lower the tariff on milk and cheese.
In our area of Michigan a huge new cheese plant is going in and the only justification I can see for that large an investment is they already know the dairy tariff is ending.
A sibling comment lower down the page provides some links: https://news.ycombinator.com/item?id=17996881