I often hear that music and politics should remain separate. I snigger at such a concept; as if they have ever been separate.
Those proponents may as well take the next logical turn and suggest that drugs and pop have never taken the same fork in the road.
Without some form of statement, music would have become as relevant as the novella, or Spanish mime.
Every turn in society has been reflected in the music of the day, from medieval folk to early jazz and blues, to punk and beyond. In some societies, it is one of the few ways of telling how brutal life is.