The "directly" in this claim is doing far too much work. If explicit lyrics caused violence, we'd expect a clear pattern: more exposure, more violence. But over the last two decades, explicit content became far more common while youth violence rates actually declined. That trend alone undercuts the causal story. Millions of young people listen to graphic lyrics daily and never act violently, which suggests the real drivers are social, economic, and psychological conditions around the listener, not the playlist. To prove direct causation, you'd need to isolate music from every other influence and show it changes behavior by itself. Nobody has done that.