What's the actionable advice here? US regulation should be the lowest common denominator of all countries one considers in competition? Certainly Chinese and Russian LLMs could vacuum up all the information. China already cares little about copyright and trademark, should they stop being enforced in the US?
My opinion is that the US should do things that are consistent with their laws. I don't think a Chinese or Russian LLM is much of a concern in terms of this specific aspect, because if they want to operate in the US they still need to operate legally in the US.