(May 1, 2023, 2:33 PM EDT) -- SAN FRANCISCO — A Northern California county superintendent of schools on April 28 filed a complaint seeking to join a growing multidistrict litigation against social media companies, contending that the companies behind the apps and platforms of TikTok, Facebook, Instagram, Snapchat and YouTube have “created a mental health crisis” among youth in violation of California’s unfair competition law (UCL), racketeering laws and other statutes....