Increased immigration is another old world idea. We don't have factories lining the shores of the 3 rivers in Pittsburgh making coke, iron, and steel. Bringin

Increased immigration is another old world idea. We don't have factories lining the shores of the 3 rivers in Pittsburgh making coke, iron, and steel. Bringing in hordes of uneducated masses does little for the US anymore, and Trump has turned off the only beneficial sources of immigration (educated) the US has - but this is also a limited resource.