WTO accession had massive economic, political and legal implications within China. There's a good review here: [1].

Discussions in the West tend to completely ignore these changes. For example, joint venture requirements have been removed from most sectors of the economy. Or to give another example, an entire legal system to protect and enforce IP has been set up in the last two decades or so, and that system is now very heavily used (including by foreign companies).

1. https://lawdigitalcommons.bc.edu/iclr/vol27/iss2/6/

I don’t care what they do. I know China bans Facebook, google, etc. and then requires >50% ventures

Did you check? https://en.wikipedia.org/wiki/Wholly_foreign-owned_enterpris...

Yes. Notice that there are restricted enterprises?

It also doesn’t have anything to do with the banning of US companies.