How about American workers learn to work for the same wages and working conditions.
If you want companies to pay a living wage with strong unions and safe working conditions, then competition with other places that don't bother with those things becomes near impossible.
Agreed. This is something that is very much overlooked when people talk about how manufacturing in China works. The country is split into special economic zones that have different rules and laws that govern the regions. This allows them to uniquely exploit their labor markets to keep their costs as low as possible.
iPhones are built by FoxConn in their Shenzhen factories. See FoxConn Suicides for more.