Rhythm And Poetry.
Rhythm: the pattern of regular or irregular pulses caused in music by the occurrence of strong and weak melodic and harmonic beats.
And: used to connect grammatically coordinate words, phrases, or clauses along or together with; as well as; in addition to; besides; also; moreover.
Poetry: the art of rhythmical composition, written or spoken, for exciting pleasure by beautiful, imaginative, or elevated thoughts.
Rap is not a genre. It is a culture. People need to learn to accept this.