But isn't this completely fine ? The US became an industrial powerhouse by doing the same. Even barred foreign inventors from obtaining parents in the US. The U.S. Patent Act of 1793 was explicitly structured to favor domestic industrial growth at the expense of foreign inventors. Provided total legal immunity within the U.S. for commercializing pirated ideas. Only when the US became #1, did international protection of its patents became a priority.

China merely followed the American approach towards industrial success.