Comparing books to TikTok algo is like comparing rifles to ICBMs.
This is what people seem to be ignoring: the algorithms are damned near mind reading, and these algos put members of society into separate realities. We would be better off if they were all banned, but at least it should be agreeable that a hostile foreign government should not be allowed to deploy this on Americans without oversight.
I don't take this as a given and I believe the US government has caused more harm to its own people than China has today; US spies on its citizens, unfairly enforces laws against people, create laws that benefit 1% of its citizens to the detriment of the rest, forces its people to go wars they doesn't support, create rules that target certain genders and races, and so on.
Importantly, the US government is able to enact more harm on its citizens than China when it feels like.
Maybe, maybe not. But when the PRC decides the time is right to take Taiwan, it will have prepared the ground by making sure lots of Americans saw TikToks (made by other Americans) saying basically this.