The hundreds of millions of people who live in similar climates are going to be a problem together with the people of Phoenix. Probably going to make fleeing more difficult when it suddenly becomes necessary.
You live in a desert that has to take water from like 3 different sources just so people have something in the tap. Phoenix is not going to be inhabitable in less than 50yrs as those sources dry up.
1/ Obviously you know nothing about Phoenix. I've been hearing these kinds of stories for decades about various cities. People have said the same about LA for decades.
2/ Phoenix has a large river that used to run through town and is now damned up behind 4 huge reservoirs which feed a massive canal system that waters crops.
Comments
I lived in Houston. It's much worse there with the sweltering dewpoint temps.
46.7 million people visited the Phoenix metropolitan area in 2023.
AZ uses less water now than in 1957 even though the population has grown from 1M to 7M.
https://www.azcentral.com/story/news/local/arizona-environment/2019/02/12/arizona-water-usage-state-uses-less-now-than-1957/2806899002/
Try reading more before making things up.
https://www.arizonahighways.com/article/dammed-good-lakes-salt-river#:~:text=Four%20major%20reservoirs%20climb%20the,municipal%20water%20for%20metropolitan%20Phoenix.