Like I said, things "should be handled carefully and potentially outlawed." Personally I don't think your comparison holds because Twitter for instance isn't controlled by a state actor so the geopolitical issues don't really apply (unless you consider Elon controlled by China because of his dependencies on their critical mineral supply chains and market for Tesla... or by Saudi because of their funds ownership in Twitter).

I don't think the hyperbole here is particularly helpful; there is clearly a national security risk to allowing a foreign competitor unfettered access to your market and control over what amounts to a major media property. Maybe you believe that this doesn't matter and shouldn't be addressed, but if you do believe it should be addressed in some way, you need the legal framework to be able to do so

There are many things wrong with this comparison.

1) Twitter is not an arm of the US government in the way that Tiktok and most Chinese companies are.

2) The law is not calling for the information on Tiktok to be banned. For instance, an image of a tweet saying "fuck Xi Jinping" could not be viewed in China, but an image/video of a tiktok saying "fuck biden" would be fine to view in America.

3) Tiktok is not benign like a book is. It extracts information from the user and sends it to the company servers.

4) It is trivial to use the platform to perform psyops; the company could easily mix subtly pro-china content into the feed from time to time.