Geologically, that area has ALWAYS been desert, with the only exception being the past 150 years. Not surprised.
It strikes me as a gross statment to the sheer will of man to remake resources into its will. Additionally it stands as an example of our current priorities and how power manifests. Don't get me wrong, I love Vegas and also the food California produces.
At somepoint in the near future we will need to have difficult disscussions more widely about resources which were bountiful until late.
https://wrrc.arizona.edu/publications/arroyo-newsletter/shar...
Growing water intensive crops in the high desert is insanity.
Much of the central valley was an at-least-intermittent lake.