At the risk of sounding blunt, rock music is bad. There is no denying that the lyrics to rock songs are often terribly immoral, but even the music itself is bad. Immoral lyrics are not always required to make a song unworthy of our affinity.
Music is composed of melody, harmony, timbre, and rhythm–in that hierarchical order. Melody is the highest element of music because it is the most intellectual. Rhythm is the lowest element of music because it is the most carnal. Rock music inverts the hierarchy of good music by placing rhythm first as its most central element, and it almost entirely does away with melody. In place of harmony, rock music gives us dissonance. In place of timbre, it gives us distortion. In fact, it could be said that much rock music should not even be classified as music due to its heavy use of the distortion pedal. Rock music would be more appropriately termed as a collection of sound effects.
True music is a very good thing because it can bring man closer to God by reflecting His beauty. Rock music is a very bad thing because it appeals to the lowest, carnal aspects of man, and it insults true music by inverting the hierarchical order of composition.
So don’t listen to it.