If your not banning tiktok for it's ownership opacity... ban it for destroying attention span and training people into being mindless content consumption robots.
We regulate cigarettes and heroin this is a much bigger problem than people give it credit for.
It's an even worse problem if a bad actor is using it subtlety to influence a population.
It doesn't matter if ByteDance or FB are doing this they should both burn to the ground for the damage they have done to the Internet and society.