How exactly would an unemployed person move? security deposit/down payment, moving costs, etc all cost real money, and without an income, I'm not sure how you would expect someone to move across the country.
Strangely, illegal Mexicans seem to have solved this problem. In fact, they solved it so well that we plan to build a wall to keep them out.
This is why I say we need to import a better working class. Our own leisure class seems completely incapable of doing anything!