https://oag.ca.gov/news/press-releases/attorney-general-bont...
Consider this analogy: Just because the DA doesn't have enough evidence to convict in a murder trial, that doesn't mean that the defendant is innocent. I just means they haven't been proven guilty.
Also, when you say "We tend to presume innocence", that's not really true. It's true (or is supposed to be true) for the government and people who want to be civically responsible, but a whole lot of the general population does not actually think this way. People think OJ did it, have various theories about who killed JFK, etc. People read the news about somebody accused of murder and think "yeah, that guy probably did it."
It's up to Meta to handle PR on such things. Unfortunately when your company is accused of, for instance, contributing to a genocide, your PR department probably doesn't have a lot of options.
Following from that, I can imagine a few viewpoints: 0) Parents are wrong, Facebook is awesome! 1) Facebook has violated existing laws (these lawsuits are exploring that space). 2) Parents should be frustrated with legislators for failing to regulate social media. 3) Parents should be angry with themselves for allowing their children to use Facebook's products.
I'm curious which (if any) of these viewpoints you hold.
All these companies know they're a target for accountability now, and even many people inside of them acknowledge a need for reform and possibly restitution. Your comment seems focused on the practical matters of these lawsuits (many of which probably are frivolous or will otherwise be lost), but what really matters are the unsettled societal costs that transcend them.
You may feel that accountability is being "misplaced", but it's much bigger than ambulance chasers and grandstanders. People are genuinely concerned about real problems and are hungry for some kind of action on them.
The same plays out with "just talk to your kids". In conversations about regulating businesses, the narrative is that parents can simply talk to their kids and persuade them to not use social media. But in other conversations, the narrative is that kids are naturally rebellious and have a strong "always do the opposite of what my parents suggest" instinct.
Unfortunately the studies are reasonably solid. They aren't double-blind control group studies but they are correlative, so not the highest most pure studies. Social media use seems to be heavily correlated with depression and other markers of mental illness and struggle.
That isn't very surprising - social media networks are designed for "engagement" and that comes from strong negative emotions. If you constantly bombard someone with a drip feed of negative emotions.. that probably does them harm.
This doesn't mean the litigants will prevail because correlation and causation aren't 1:1 but it's probably a good idea to push your kid away from social media by explaining this to them.