Rap does have a negative impact on minds that aren't already developed or strong enough to fully seperate entertainment from real life. The lines become blurred and behavior can become influenced and shifted. Yes, the nature of rap has had sad consequences for those that indulge and are still trying define themselves. These rappers are like video game characters you can select and blend your identity and persona with and eventually your behavior unwittingly...especially the youth. But before rap, the streets influenced the culture that actually makes it so infectious. It's a real thing and can't be denied. It is art and there is a craft behind it. It represents something that is going on and people don't want to face it in full reality, so somehow we turned the pain into an entire subgenre/culture for the masses to consume. With the corporate connection, anything and anyone can plug into it and attain some type of effect with basic interaction and participation. Depending on who you are as a person and your surroundings, it may or may not have detrimental consequences, but most people aren't rooted in anything firm within themselves. They want something shiny, catchy and easy to lull them and numb them from reality.
Today's rap music is designed to push a certain image and message that doesn't benefit the listener for the most part. The concepts are all the same, just over different flows and beats with different but similar looking characters. It's become a death cult. The aggression that pushed it into the mainstream has been transformed into something else. Something that is profitable for the few that control it and detrimental for the unsuspecting minds that interact with it over time. Most of it is bad and that's the truth. It's empty but catchy and that's what the energy is doing and spreading. The violence is coming from the lack of worth and value put into the product and the consumer is interpreting that energy with a lack of value or worth in themselves. It's easy to take another's life or even let go of their own because almost every song talks about it...sings about it even if it's just a second. All the lingo has murder and violence coded into the simplest of lyrics but it's all being taken in by the subconscious of the listener(s).