While I don't question that systemic racism is real, I don't quite see the link here. Isn't the kind of violence video games get blamed for more commonly committed by non-minority people who have mental health issues and/or were "social outcasts" rather than racially motivated? I mainly remember the topic as coming up in connection with school shootings and the likes, not potentially racial hate crimes.
100% agree on the looking for simple (and comfortable to admit!) fixes though. It is so much easier to say "we made a mistake letting kids play these games" than it is to face the truth that some people are either completely left behind by society or descend into incomprehensible madness for no comprehensible reason.