I'm a Chinese let me just point out the obvious here: it's not that US "rejected" manufacturing, it's simply that the US at that time needed to get itself into a more profitable service economy, and by doing that it raised the living standard in the US so slowly more and more US citizens stopped seeing manufacturing jobs as an attractive option.
In fact, I don't really think Americans can be attracted to the manufacturing industry again (least not in this form), unless of course if you want to work in a sweat factory and handle heavy metal such as lead and lithium-ion while have full knowledge that doing such work will shorten your lifespan by 10% or more. Even China is upgrading it's manufacturing capability/technology because (guess what?) the Chinese also stopped wanting these dirty jobs.
The DJI bomb conspiracy is stupid because it assumes that the CBP of the US is dumb enough to not screening for explosives while doing their inspection. If smuggling this massive amount of bombs into the US can be this easy, then I'm afraid you are in much bigger trouble than this.