As they should - whoever thought it was a great idea to put a massive sprawling city in the middle of the fucking desert (with a single small river with which to draw any sort of water) was out of their mind.
Don't get me wrong - I lived in Southern AZ during my undergrad years (Go Cats!) and loved it. It's a nice place....in the winter. But the summers there are BRUTAL beyond belief, and in times of climate change and things getting hotter, there's no reason to continue to build and bring in new residents - it's just not a good idea.
Something like 70% of water usage in AZ is agricultural [1] Somehow this never gets talked about. Somehow it's always "dumb to live in the desert" but growing water-intense crop... no problemo.
[1] https://www.arizonawaterfacts.com/water-your-facts