It's not misplaced blame. It's an accurate statement: China's fentanyl has made the opioid crisis in the US far worse and far more deadly. China entirely deserves blame for the fentanyl coming from their country. They're blatantly allowing very large amounts of fentanyl to flood into the US, even while they know exactly what the end result is. They've hardly lifted a finger to stop it. They're an hyper-surveillence totalitarian dictatorship that can control every aspect of their system, including the ports. If fentanyl is pouring out of China, it's because the authorities there are knowingly allowing it.
