The Central Valley has the largest area of Class I soil in the world. Don't know what that means? Look it up. The climate in the Central Valley is quite unique and perfect for growing a wide range of crops. Very few regions in the world have the characteristics of California's Central Valley.
This doesn't mean that water isn't a serious issue worthy of debate. But folks like you, whose knowledge of agriculture is clearly quite superficial, aren't adding anything to the debate. You conveniently ignore how important California agriculture is to our nation's food supply and seem to be willing to pretend that ag in California can just go away without consequence. In reality, it's not the farmers who stand to lose the most if a sustainable solution to this issue isn't found; it's the American people.