This feels unfalsifiable, because you could reject any coherent argument put forth by saying that they just got this from some social media platform and they don't truly think that. The modern society and system have been picked apart relentlessly, and most of the simple arguments against it are already floating all over the place, including the short-form addiction farms.

The fact you think that not a single one out of hundreds of millions of people has a genuine belief and that they all are just dumb kids being dumb because they're kids and following trends is staggering, I don't think any adult generation has ever had an opinion this extreme about their youth.

Anyway, here's this article[0] that was posted on the NYT about a week ago. It's not about AI, but many of the interviewed kids touch on its future downsides in ways that aren't just "AI bad cuz TikTok". And these kids are young, their worldviews aren't half as coherent as a 16 year old's. They were definitely pre-selected by the editors and probably aren't representative of the average kid, but they represent some of them. That's enough for your request of n=1.

[0] https://archive.is/dw3iB