It looks like the start of a new land grab...
Don't you know it.
As far as I'm concerned, the real issue for any one of these residences is if the tooilet is working and, generally for the city, if it can deal with the effluent from working toilets. If the answer to both questions is "yes," and the people have adequate resources to stick it out, then they should be allowed to decide whether or not to leave. Otherwiser, they should be evacuated.