I'm sure this is already happening. I've caught some acquaintances' kids running around watching YouTube on their phones and the funnel gets them watching the most bizarre, awful, poisonous content you can't even imagine. It's absolute nonsense that has got to be generated by AI narrated by computer generated voices and featuring loose knockoffs of popular characters running around in weirdly random directions (mostly farm animals).
It's very scary how violent these kids get when I take it away from them, who are otherwise the sweetest. I'm afraid of how their generation is going to turn out after being so attacked by the media they unwittingly consume in their childhood.