All this says is that there are plenty of resources that have not been tapped.
The question is why not?
The answer is that the incentives created by local, state and federal governments are so bad that these resources go unused.
In addition, the government perverts the market by rewarding people not to work. The perverse nature of rewarding laziness over productivity creates an environment of limited jobs.
Want to see better employment numbers?
Unshackle businesses by deregulation and minimize government assistance to make working a better option than living on the dole