The cheapest shit a homeless person might prefer to living in a car or a tent is probably more like $5000-10000. Could build a million of those for $10B. Plumbed.

Ever seen a cottage? The people living next to my parents lived in one, no more than 500 sq.ft. Happily raised two kids in it; happily lived in it until their deaths. On a nice lot on a nice street, far from cheap shit. Maybe the favela ( been reading Sterling?) is in your head.