To be fair if the the parent is garbage there isn't anything the state today can do to truly prevent the child from being corrupted short of taking the child. We ensure that vaccine laws are difficult to enforce, we ensure that the child cannot have any privacy from the parent codified at school. At every stage we gave parents essentially absolute authority over there children with exception to maybe physical abuse. And I say maybe because even in physically abusive parent, it can be difficult for the child to advocate and escape. They can ask to be emencipated but the odds are stacked against you that you can proof you can support yourself financially.

All this to say is while I think the OP is mean about it they but are not wrong. The law argues heavily the parent is supreme at least in the US. But this specific law push the responsiblity of being the supreme authority off of parents. I know you don't like that concept but I think it is very easy to argue that any other model is going to be unacceptable to a pluraity of parents. Thats not to be confused with a parent is responsible for everything there child does because thats not true. But the consquence of that thinking is that children ultimately have some responsiblity in the things they do over the parent, which I think the authors of this law would be sweating at such a statement.

Personally I think the biggest issue for children is impulse control around social media and to be frank I don't think Adults are necessiarly able to deal with the onslaught of endless feed short form video content either. I don't think our brains are built against it very well. I don't know what the solution is but I think what made youtube without shorts different from tiktok is the endless scroll nature. The added friction actually protected peoples conscious and something to add a minimal friction to interactions would actually be massively beneficial to society at large