In the 1960's, China made a mistake in its nuclear programme, and allowed a high yield nuclear weapon go off prematurely, killing pretty-much all of its leading scientists and technologically-educated workers. It's not likely that any CHinese citizen would know this, since the government has a policy of continually "saving face"...which means that it lies to its citizens without any scrap of remorse, or any break in the stream of lies.
I know this because my father headed the VELA satellite programme, in the United States, which both detected the detonation, and determined the consequences of the blast. For a time, this was classified information, of which I became aware at the time--because I was a sneaky little snoop, and had a scientific upbringing which allowed me to understand the documents I was reading. Even now, it is little discussed, but we do know what happened, which forms the foundation of Chinas behaviour, now.
Since that time, China has been digging itself out of a self-imposed technological dark ages, and instituted policies of spying and stealing technology, so that it could repair the self-imposed destruction of its scientifically educated workforce.
China does not spy and steal technology because of the spying of other nations. It does so in attempt to regain the progress that China lost when it ineptly blew-up its own scientists--pretty-much all in the same disaster. Because it would lose face this is probably a closely guarded secret within China, and a plethora of propaganda exists to gloss-over the discovery of Chinas own mistake, by its own citizens--after all, you can't trust a government that would make such a huge mistake, and not admit it to its own population, could you?
Fact: China steals technological information from other nations, and exacts technological information from corporations which contract services from Chinese companies which are politically controlled by the Chinese government. (I have attempted to contract for device assembly services from Chinese corporations, and the requirement conveyed to me was the release of technological specifics of everything contained in the final device...not just the portions that were subject to the manufacturing process for which I sought contract services.)
Fact: China has wide and very prolific spying programmes, which remain active and expanding today.
Fact: China is VERY interested in controlling other nations to its own advantage, and will brook nothing less than total advantage over others, in what it assumes to be a coming global conflict. This policy does embrace the inclusion of both information gathering and dissemination methodologies, along with "kill switch" technologies in information transmission and processing equipment manufactured within its borders.
To deny this is both ignorant of the facts, and a willing consumer of lies.
I respect the Chinese culture, and its people, and value the friendships that I have formed with people therein. I regard many as personal friends, but I realize that they are as subject to the Chinese government, and its laws, as I am by the government and laws of the nation I inhabit.
I, do, however, absolutely disdain the system of government of the PRC, and see how damaging it is to its own people, and understand how very weak and frightened such a government is, when it hides behind a continual shield of lies.
Our governments are enemies to one another, but that does not mean that we cannot ignore the propaganda of both governments, and co-exist peacefully with each other.
OK...that's my humble contribution to the evolving discussion, and I am off to do my work.