Just about everything you stated is false, and the reason for that is you really have no idea what it takes to manufacture an iPhone, nor the sheer scale of such manufacturing operations.
Foxconn employs nearly 1.5 million people in China who assemble electronics. That's more people than Home Depot, UPS, FedEx, and GE collectively employ in the entire world.
There aren't 1.5 million people in the entire US who have the skills and the desire to assemble electronics for a living, and certainly not in the approximately 5 million who are currently unemployed.
To attract and train that many workers you would need to raise the price of an iPhone to at least double what it costs today. Even if Apple was willing to do that, there would be no point since no one would buy a $3,000 phone when they could buy the Samsung equivalent for $1,500.
This nonsense is spewed by self-proclaimed "patriots" who know nothing about economics. The fact is that forcing Apple to manufacture phones in the US is not good for America, but it is a boon for its non-American competitors.