Not really true for most sectors where FDI can be 100%. It depends on sector in which company is operating. Like in USA there are certain industry where foreign companies cannot participate and require a special security clearance, which is only granted to local company run by USA citizen.

China operates the same way. Check more details at China briefing [1].

[1] https://www.china-briefing.com/news/chinas-2020-new-negative...

But most us businesses can work in uk and Eu but not in china. Hence the close up of the market (for alleged security reason) is economic and political Impossible

Microsoft has 99% marketshare. KFC, McDonald's, Nike, Coke, GE, GM all have dominate huge chunks of their market.

What you are saying is completely incorrect and bizarrely repeated ad nauseum here.

There's far more US companies operating in China than vice versa.

Please provide some evidence for the claim that "most US businesses can't work in China".

Isn't it true that the American government has obtained user data several times from tech companies.

Whataboutism?

Whataboutism is basically questioning hypocrisy. Yeah, it's not nice to have your hypocrisy questioned, but it isn't wrong.

The problem is it's a distraction from the original complaint. It doesn't answer the question, rather it deflects it onto something else.

This is not an unusual requirement. Fifty years ago, the company my father worked for looked at a mining venture in a French dependency in the Pacific. It had to be done as a joint venture with a French company, which had to own 51%.

Tiktok isnt doing business in China though?

Bytedance has a similar app that meets local legal requirements but it's not up for sale.