GM, Tesla and Apple are making tons of money in China now. Even Google and Facebook are making over hundreds of millions of ads money each year from China. Yes, Google and Facebook still have branches in China and make a lot of money.

Unlike GM, Tesla and Apple, Facebook is not making money by operating in the Chinese market. Facebook is making money from Chinese advertisers via resellers. It's Chinese capital being exported to Facebook outside of the country, for a service operating entirely outside of China.

Equivalent to an advertiser in China going through a local ad broker that works with the NY Times, to place an ad in the NY Times in a paper sold in NYC.

AirBNB is though if their operation there is anything less than a constant fire I would be surprised.