Thirty-three state attorneys general left, right and center have filed suit in California federal court against internet giant Meta, and another nine are suing the company in their respective states. The central claim — that the company has built Instagram and Facebook features “to entice, engage, and ultimately ensnare youth and teens … and has repeatedly misled the public about the substantial dangers of its social media platforms” — must be taken seriously. Endless, and endlessly circular, is the debate about whether social media is bad for teenagers, and if so, how bad. There’s no question...