They weren't "banned". They simply refused to comply with chinese laws and chose not to operate in china. Tiktok is complying with american laws and yet still are facing a ban. Apples and oranges.
But considering twitter, google, amazon, facebook, twitch, etc are part of US intelligence, it should be banned in china and most of the world. And I think we should ban tiktok because it's part of the chinese intelligence apparatus.
I hope this is the beginning of a fracturing of the tech world which will lead to a burgeoning of tech in europe, japan, china, russia, india, etc. Can you think of a single good reason why europe, japan, china, russia, india, etc shouldn't have their own apple, netflix, facebook, google, amazon, etc?
I hope the "inter"net will truly be a network of networks. Where each major nation/region has their own protect technology ecosystem, networks, programming languages, social media, etc.
I still believe in "inter"networking, but not where a single country "owns" the entire network/stack. I even hope this leads to tech fracturing in the US. We are too silicon valley centric. The northeast by itself is large, wealthy, talented and populous enough to host 2 or more "silicon valleys". Microsoft, Facebook, Amazon should have been east coast companies.
We have a serious lack of competence amongst politicians worldwide when it comes to tech.