I suspect these homes would be more policed even than any general "rough area".

In fact, this might cut on crime in general, much like honeypot stings.

I recently served on a jury in Seattle. The trial involved a man who was living in a facility similar to the ones described in this article. Many of the people living there continued to use drugs heavily in their apartments, and in this case that led to a murder. It was pretty depressing to see that even with significant intervention, people's personal choices led to disaster.

It will be, give it time. They seem to be working overtime in Europe to create a welfare class, and that's going to inherit all the problems the US has. It's simply the law of economics.