Interesting point on California wheat -
There was in fact a great deal more wheat grown in California @100+ years ago than today; it was used as a return bulk cargo to Europe (old sailing ships apparently could take cargos direct around the Horn just as cheaply as across the Atlantic and over the railroads). This was sold mostly in Germany for flour, Germany being short of grains at the time.
The point being that this stuff is perfectly edible.
You want to deal in fact? Here's one: in spite of what anti-meat people will tell you, a LOT of land in agriculture is infinitely better suited to support livestock than it is to support the cultivation, growing, and harvesting of crops for human consumption -- in other words, use of that land to grow crops for human consumption is a woefully inefficient use of resources compared to what it could (and does) produce in/for livestock.
It may "seem unlikely" to you, but that doesn't make it any less true. Livestock ruminants including beef and sheep (as opposed to other livestock animals, such as pigs and chickens) create the opportunity for the amazingly efficient use of agricultural resources, and convert grass and inferior grain into a vastly larger and superior range of end products, from dairy and medicines to meat, clothing, and chemicals; claims that livestock ag is wasteful of water or an otherwise inefficient use of natural resources is pure politically-correct hooey.