Making something illegal isn't gonna work if there's clearly value in doing it, and isn't actually harmful. Regulatory unfairness is easily discerned.
Look at how competitive chinese EVs are, and no amount of tarriffs are gonna stop them from dominating the market - even if americans prevent their own market from being dominated, all of their allies will not be able to stop their own.
Like I've said before, this isn't a physical good that is being sold. LLM is knowledge and many governments and people are going to be concerned with how and who is packaging it. Using LLMs created by China will mean certain events in history will be omitted (which will not be exclusive to China). How the LLM responds will be dictated by the LLM training and so forth.
LLMs will become the ultimate propaganda tool (if they aren't already), and I don't see why governments wouldn't want to have full control over them.
Look at how competitive chinese EVs are, and no amount of tarriffs are gonna stop them from dominating the market - even if americans prevent their own market from being dominated, all of their allies will not be able to stop their own.