The biggest roadblock to manufacturing in the U.S. is a daily wage above $10.
Repealing the federal minimum wage would certainly be a good start. Unskilled labor simply isn't worth what the US government it is. But I would go further, US corporate income taxes are among the highest in the world. The US also imposes many other restrictions and regulations on business that makes it too hard for manufacturing to be profitable. Many states also impose forced union membership on people, which further discourage businesses from hiring. Roll some of that back, and the manufacturing sector will come back to life.