OP, I think you made your point plenty clear now. I think it's probably a good time to end this discussion already as ECS has also given you a response (albeit not the most ideal, but acceptable in this sense).
Unfortunately, most companies would not cover shipping for returns in this kind of situation (trust me, I've experienced this kind of frustration myself plenty of times before).
Hopefully, whatever you decide to get next time (if there's a next time) or if you decide to use the current rotors you have (albeit they're made in China), things will turn out well for you.
Maybe, you can see if you can sell these rotors locally to someone else if they think it's a good deal in light where it's made. That's more work, but at least you'll be able to recuperate some of your losses.