For example, the 51% requirement does not apply in most industries any more. It was a transitional measure as China opened up its economy to foreign investment, to prevent foreign companies from instantly taking over or outcompeting every Chinese company. But that measure has been rolled back over the years, and now only applies in particular industries. Tesla 100% owns its operations in China, as do more and more foreign companies.
Many people in the US and Europe are operating with a mental picture of China that is decades out of date, or which is even just wrong.