It means that poor choices and addiction can’t explain why San Francisco has so much higher homelessness than other places like West Virginia, which has much higher addiction rates.
It certainly does not mean that poor choices and addiction haven't lead to any or even most of the outcomes in SF. It means that the exact combination of dynamics in SF have produced different rates of homelessness than other places.
Nothing more or less.
It does not even come close to justifying the statement
> Rates of homelessness are not correlated with "life choices" or "events" at all
