The rock and rap music of today is to many teenagers the silent voice within themselves; so many kids identify so strongly with some of today's bands and their messages. Who could ever see this as a bad thing?
Although negative messages do exist, they are all around us in our world. It is not the rock and rap bands that 'poison our minds,' it is not these bands that inspire kids to get guns and shoot their schoolmates. Rock and rap bands today and their messages do not influence society, society influnces them.
I hope my input could be of some use to you. You have my permission to use or publish my name and/or my comments. Good luck in your search.