A US court has ruled that the addictive-by-design nature of Meta and YouTube harmed a young woman and worsened their mental health. This court decision is clear: these platforms are unsafe by design and meaningful change is urgently needed. Rather than using blunt tools like banning young teens from social media, States must require a fundamental overhaul of how these platforms operate, including addressing their addictive design. This is the only path to a truly safe social media. For years, social media companies including Meta and YouTube have profited from targeting children and young people with addictive design features that prioritize engagement over wellbeing.