The whole article gives zero evidence of the statement in the headline.

Even worse, it is directly contradicted by the studies from San Franscisco where something like 15% of the homeless have a traumatic brain injury.

So, better than 1 in 10 of the homeless in SF should be in a medical facilty for starters.

However, building and funding medical facilities is expensive. So, the electorate is willing to do anything except what the data actually tells them to do. So, let's build housing and then whine when it doesn't work so we can go back to ignoring the homeless.