Interesting tidbit of history, but not sure I get your point. This pre-dates international IP conventions and the flourishing of innovation in the modern age, and this was a single technology over which China had a monopoly hundreds of years.

Nobody is saying the west never steals anything. There is a difference between pointing out one occurrence of a technology being "stolen" 500 years ago and a modern policy of government supported IP theft through hacking, trickery, and contract violation.