That's idiotic. Phoenix makes as much sense as Los Angeles and there is plenty of water from the Colorado River feeding both cities.
It takes less energy to air condition Phoenix during the summer than Minneapolis takes to heat in the winter (temperature gap desired maxes 50F vs 100F). Additionally, the energy it does take is much more amenable to being fulfilled by cheap solar than the cycle required by heating at night.
The only people who find it arrogant are ones who do not understand air conditioning is cheaper than heating and that water can be moved in aqueducts.
Nobody claims that Chicago should not exist, nor Minneapolis, nor New York. The only difference is that they depend on older heating methods instead of air conditioning.