The are about 1.7 million dairy cows in California at any given time, and about 670,000 cattle on the range.
Most of these dairy cows are not living on grassy hillsides, they are confined and fed silage, most of it grown in ways that are not bird friendly.
When the milk production of a cow declines it is turned into inexpensive beef products, along with the young male dairy cattle.
Personally, I think factory farm meat and dairy production is a larger problem. I'd like to see the markets for cheap liquid milk evaporate. I'd like to see factory farm pork production shut down.
I don't believe cheap hamburger, bacon, and gallon jugs of milk are a basic human right.
With higher beef prices we could increase environmental regulations on range land, decrease the density of cattle, in effect allowing responsible ranchers to become caretakers of the land.
In my U.S.A. utopia there's no demand for factory farm meat and dairy products, or fuel ethanol. With much less demand for agricultural products sensitive farmland and range land could be restored to a natural state and rewilded.
I look forward to the day when the veggie burger is both the preferred and lower priced option at fast food places, and schools quit serving cartons of cow's milk for school meals.