Try telling that to the people in the US that are losing their jobs as plants close left and right and move to Mexico, Canada or China.
I don't have the reference handy but the percent of remaining jobs in the US that are manufacturing are only 13% of all jobs.
Do a search on TAA Dislocated Worker supplements to address your idea about increased jobs from manufacturing expansion. lol you need to wake up and look around.
Here come the violins. Manufacturing employment is dropping world-wide, friend. Including China. Remember them? That's the place where allegedly all our manufacturing jobs went.