When the American Economy has jobs again, many of these people will seek employment and will automatically stop their own gravy train when they return to work. They are not all deadbeats. Most are good people who are simply trying to survive in the worst economy since the Great Depression.
And when and if we muster the political will to raise the import tariffs and rebuild the American economy, some will return to work. Other's may need some intervention to get them to return to help overcome the depression that sets in after being unemployed too long, and from the financial devastation. It doesn't make sense to spend money on intervention right now, because their are no jobs.