California is a national supplier of food - fruits, nuts, row crops, field crops. It is a major sector of the California economy that employs, not only farmers, but harvesters, processors, bankers, brokers, truck drivers, marketers, etc. It is time that California treated the agricultural industry with some respect.
As for reservoirs and dams, the enviros have an agenda to remove dams. They are currently in the process of getting their way on the four Klamath River dams.
If anyone looked at Lake Shasta on the Sacramento, they would be appalled at the water levels and the amount of bottom showing. They have talked about enlarging the height of the dam as if that would make a difference. When there is a drought and the courts release all the water in the reservoir for fish, it doesn’t matter how high the dam is. There is no additional water to fill it.
More water does not mean more fish (particularly salmon.) Sometimes it is what is happening with the ocean that is the main cause of a fish population decline.
They have enough fruits and nuts alone to supply the whole world for generations.