It can’t be cost-prohibitive to use them; counties poorer than the USA use them.
(I went and looked!)
“Desalination plants operate in more than 120 countries in the world, including Saudi Arabia, Oman, United Arab Emirates, Spain, Cyprus, Malta, Gibraltar, Cape Verde, Portugal, Greece, Italy, India, China, Japan, and Australia.”
Of course, it probably displaces some USA ‘sand flea’ that the Greenies DEMAND be protected, so there ya go. ;)
Agree Ca. state leaders have their head in the sand when answers are in front of their face.