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.
Wow clearly this a problem that can never be solved, better to not regulate these tech giants that have anti-democratic and anti-human beliefs. We're simply too powerless to regulate these entities!