Rap Lyrics - I Killed My God, 354 State Street?

Where is the line? If a rapper says, I killed my god, 354 State Street. Is that something that can be further investigated? Or should there be this golden rule that was art and you can't use it in court? That's where a lot of the debate hinges. Most people are decrying rap lyrics used to paint a narrative about young black men and women who have a predisposition to commit criminal offenses.