How Does music promote, drug/alcohol abuse, gang ideology, aggression, etc, for youth?

How Does music (in particular rap and hip hop) promote, drug/alcohol abuse, sexism towards women, self harm, gang ideology, aggression, etc, for youth? is it through what they say? their videos? what?

Please answer this question in detail if possible. How are these things promoted? e.g. in lyrics? in mood? whatever. I would like some examples if possible.

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