I mean, if someone was on a street corner selling child friendly cigarettes, I wouldn't call that a parenting issue.

I think parenting is one aspect, but surely you see how given it's a platform that advertises itself specifically for children, in the same way as if there was a children channel on the TV telling your kids to smoke crack, maybe someone should step in

Yea, we'd charge the person on the corner selling the cigarettes. We wouldn't sue the city for selling cigarettes just because it happened in the city, even if the person selling them paid their taxes (so the city made money on it).

We would expect the 'city' to police the illegal cigarette sellers, and vote them out if they didn't.

I think it becomes a societal issue when the product is specifically aimed at children as opposed to simply existing.

As a society, we limit children's access to predatory stuff all the time - porn, alcohol, cigarettes, gambling/lottery, guns, even swear words on the public airwaves.