I'm confused... did the US sue China when it banned American companies from competing inside their borders? No. Case over. US can do whatever it wants inside its borders, similarly to how every other country does. This lawsuit is ridiculous.

Except China never banned American companies.

Google would like a word with you, and many others too.

Yes they ban foreign companies. All companies need a Chinese partnership to enter China.

Eg. Azure needs to let someone else handle the infrastructure there. The only exclusion i know of ( i think) is Tesla, because China is very interested in it's tech and for it's goal of EV dominance.

They don’t, there is plenty of western companies there. And yes, they need a local branch, same way non-US companies need US branch to conduct business there.

Sure, that's why someone else is handling Azure in China instead of Microsoft :)

American law forces all US-controlled companies to relay user data to various govern agencies without any real oversight. EU is protecting their citizens too.

Even US is doing the same, see TikTok.

Telecommunication services are on the list of industries where foreign investment is restricted http://images.mofcom.gov.cn/www/202112/20211227175520952.pdf , irrespective of the laws in other countries.