They didn't ban them. Those app developers refused to abide by China's information technology laws. Apple products and their services are available in China, for example.
Source of what specific US laws Tiktok is in violation of. It is very easy to look at Chinese law and see that it is enforced equally across all services in the country, and that those that work within the law are welcome to operate. It isn't protectionism, Apple is a competitor for many Chinese products but are allowed to operate because they follow the law.
China banned ALL US social media apps.
They didn't ban them. Those app developers refused to abide by China's information technology laws. Apple products and their services are available in China, for example.
Then tiktok refused to abide by US laws.
Do you have a source for this?
Source that if china bans American apps then America has the right to ban Chinese apps?
Source of what specific US laws Tiktok is in violation of. It is very easy to look at Chinese law and see that it is enforced equally across all services in the country, and that those that work within the law are welcome to operate. It isn't protectionism, Apple is a competitor for many Chinese products but are allowed to operate because they follow the law.
Not playground legal logic.