It’s an off shoot of police containment tactics. Generally, when homeless and vagrants congregate in specific neighborhoods, the cops round them up and move them to another neighborhood or part of town where they are essentially out of sight. This is urban studies 101, and The Wire’s ‘Hamsterdam’ is depiction of the tactic.

That’s roughly the plan here. Move them out of sight (site? No pun intended).

As for actually how to solve the mess? Eh, just tuck the dirty laundry under the bed. Clean room in seconds. The society needs a refactor in certain parts of the codebase, but few have the courage to take on a legacy codebase.