Which would lead to everyone having their own personalized front page? Not controlled by dang so much but still.

I think you are just reflexively trying to argue your point without even thinking about it.

30 million tiktoks are posted by day. What do you mean your are going to allow "users to filter". This "regulation" will be trivially defeated by TikTok-Videos LLC uploading videos and TikTok-DataScience, providing the most popular filtering algo.

At the end of the day, many children will simply default to using the best algorithm, and all this regulation helps no one.