I would suggest that teachers show their students concrete examples of the negative effects of the actions that gangsta rappers glorify.
“It is not at all clear how much the media influences public opinion and how much public opinion influences the media.”
“The first time I ever saw people of any color was when D-Day left from my hometown in England, to go and free Europe from the war. And there was every color you could imagine, and I'd not seen that in England.”