While there is definitely good reason to believe that is happening, it should be noted that multiple Chinese-American scientists have been subjected to meritless witch-hunts. See e.g. https://www.sciencemag.org/news/2015/11/feature-chinese-amer... and https://www.nytimes.com/2018/05/17/technology/sherry-chen-na... for examples.

I’m as opposed to current US idiocracy as anybody, but requiring people to relitigate every last fact, and prove even widely accepted moral concepts from first principle, just destroys any honest debate.

I do not know of any place that widely proves that "state-owned and state-controlled companies" are stealing trade secrets.

Individuals, sure. State-owned companies? I would like to know the proof for this.