> Good things there are entire fields of medical experts working to understand the exact mechanisms and harm and we're not leaving it up to you.

No, that doesn't work. Harm is a normative concept, not an empirical one, so there's no role for "expertise" to play in defining it. Medical experts can describe mechanisms of causality, and their associated effects, but deciding whether those effects constitute harm is something that actually is up to each individual to decide, since it is an inherently subjective evaluation.

> Not to mention how often we keep catching these companies with explicit policies to make people never want to leave the app.

Yes, and attesting one thing while doing another is certainly something they can be held accountable for -- perhaps even legally, in some cases. But this attempt at treating social media as equivalent to physically addictive chemicals is pure equivocation, and making claims like this actually undercuts the credibility of otherwise valid critiques of social media.

At the end of the day, this is a cultural issue, not a medical one, and needs to be solved via cultural norms, not via political intervention based on contrived pretenses.