Today people from the West travel to and live in China constantly. Tons of Chinese kids come to America and go to universities (some where they're like 20% of the school's incoming class). How do you think all of the west's stuff is made in China? From communicating with Chinese people and traveling to China. It didn't just magically happen. It's also pretty well known to the West and other parts of the world that China has been stealing state and corporate secrets for a very long time.
I really don't get this argument. The West (and world) knows China inside and out.