NYC, HI, CA >40 per 100k homeless in 2020 (higher now)
States with lots of poverty but also extremely cheap housing at the bottom with a 5x lower rate of homelessness: LA, AL, MS
Similarly, WV very low on the list despite being high on all of the other supposedly causal factors such as mental health and drug problems
Poor people with mental health and addiction problems can still live with a roof over their head as long as they're not competing with tech salaries to buy any kind of shelter.
No, I would expect the opposite. All the would be homeless in unappealing states leave and go to california or NYC because if they're not paying for housing they figure might as well go to the nicest area.
Not obvious that there's evidence for that