If there's actual smuggling of designs or trade secrets going on, I'd be more interested. But if it's just "the rocket looks the same on the outside", that's hardly "industrial espionage".
There's a lot of open source intelligence about SpaceX rocket designs available.
Few layman know this but France is one of the biggest industrial espionage players active in the US and Europe, after Israel of course.
In fact, according to Wikileaks diplomatic cables from Berlin quote: "France is the country that conducts the most industrial espionage [in Europe], even more than China or Russia."
Basically, every nation on the planet engages in espionage for its own benefit if they can get away with it. There's no honor amongst thieves.
Singling out China as if they're the only ones doing it, or the ones doing it the most, is both naive and hilarious.