Get back to us with real numbers for non-farm use of water and you may have an argument. Although the urban population numbers have been achieved by water conservation measures that are so strict parts of the SF sewer system stopped working because they assumed a certain minimum flow of water with the waste, none of this is cost free.

That other parts of California's economy have gotten really big, high tech rather obviously for the HN crowd, doesn't mean its agriculture sector has become less important for the US and the world. Something we're going to become generally well acquainted with as fertilizer price rises due to unrelated political polices decease yields all over the place.

If they've indeed moved towards more water intensive crops, that doesn't change the terms of the original compact made with them and the urbanites that allowed these water systems to be built in the first place. If the rule of law still means something, as noted elsewhere taking their water rights away will not be cheap as it's a "taking" as used in the Bill of Rights, and our diets are going to change as these "more water intensive crops" are no longer available or at their usual prices.