Repeat after me: As long as the oceans are full, there is NO such thing as a shortage of water, there is ONLY a shortage of the will to spend the money necessary to spend the money necessary to deliver water of sufficient quality and quantity.
I can hear the environmentalists predicting that Nevada will turn the oceans into salty "dead seas", use up all the water, and ultimately turn the whole earth into a desert. They made similar claims when a desalinization plant was proposed in Australia.
I agree with you. People who say there's not enough water don't make any sense.