This is insightful, and I liked some of the historical context if provides to show how this behavior evolved.
I would like to point out that there is no electorate in China, and substantially limited rights to privacy (if at all). The Chinese government can play the long game - devise and execute a 100+-year plan to accomplish a large task - since they do not answer to an electorate. (No substantive changes in political mood every 2 or 4 years.) Couple that with their vast wealth (thanks to the West), and their large population naturally accounting for a greater number of high-IQ individuals and improved technical problem-solving capacity, I picture them planning and executing very large-scale, intricate, and long-term clandestine programs to spy on and plan to undermine adversaries.
I sometimes wonder if the Chinese government privately thinks the West is both arrogant and ignorant. Does the Chinese government already believe it is in conflict with the West? If so, are we aware of that or do we brush it off if statements that assert Western superiority or capability? IMO, the Chinese government is already executing plans to take Taiwan and exert greater worldwide influence. My fear is that when it happens, it will be swift and we won't know what hit us. I certainly hope our intelligence agencies are monitoring this and fully aware of not only our strengths, but our weaknesses as well as that will ultimately be the foot-in-the-door I think they pursue.