Ah but this is the seeing point of New Zealand: they have a low population of people, and a lot of open grazing land. Heck there are more sheep than people there! That is a no go in the US.
You raise an important point alot of our food issues come from abstraction and seeing the products not as having coming from a living thing but rather as a commodity.
We loose track of the implementation details of how the food is sourced.