The problem is the way economics is taught in colleges and classrooms. Every freaking job that leaves this country gets an FR salutation that it is "whip and buggy" technology. To that analogy I must strongly disagree. Whips and buggies went (practically) out of existance. TV's, underwear, Hersheys chocolates... manufacturing such items are not obsolete. It would be refreshing to be able to "choose" to buy something "made in America" that plugs into the wall.
The trading "system" (WTO etc) is not the only culprit here. Government regulation and taxes will kill any incentive to revamp our manufacturing base. Mining, manufacturing, agriculture and construction are the only way to "create" wealth. Anything else is just a poker game - moving the chips from one end of the table to another.
Secondarily, the smaller number of American manufacturers must take up a larger and larger burden of a dwindling tax base.