That is one heck of a good question.(Well,ask yourself, how could Hillary Clinton possibly be allowed to become a U.S. Senator? But I digress) Looking back to the 80's and 90's when Ozzy Osbourne and Judas Priest (in separate court cases) were sued by the parents of children who listened to "that Heavy Metal Music" as they called it, and claimed the lyrics instructed them to end their own lives ( which in both cases were proven false,of course ), it is my opinion that Rap ( or any music that doesn't ring my ear) as explicit and unappealing as it may be---it is more the lack of discipline/direction by the parent(s) in their kids lives that determine how the child develops.I don't allow that music in my home,know that.But you can't ban music---anyone can create a song and put it online nowadays anyway, but it's my choice to ignore it and spend my money elsewhere.Tipper Gore put labels on CD's in 198?. That's more than enough of a ridiculous action already IMO.
I think Albert Gore II went for this as an "issue" because his dad, Albert Gore Sr., saw his political shot at the White House go down the tubes when fellow Tennessee Senator Estes Keffauver ran his own name into the national spotlight investigating juvenile delinquency and its causes (culminating in Senate hearings that led to the censorship of comic books with the Comics Code Authority).
Keffauver picked up the Dem's VP slot and Albert Gore Senior's shot faded away (next came JFK, LBJ....).