There will always be a country somewhere that others use for cheap labor. China just happens to be the largest one at the moment, and as mentioned above, they are taking advantage of it (like they should).
Bringing back manufacturing to the US might help the economy, but that's not really the direction we're heading in. The US is no longer a labor based economy; it's a skills based economy. It depends on talent and skill to run. That's why it's becoming freelance and gig based rather than full-time. Is it necessarily a bad thing? I don't think so.
The competitive environment in the US facilitates some of the best innovations in the world. The economy is like that because it forces people to evolve or get left behind. Unfortunately, the ones that get left behind often suffer.