Players of music are no less qualified than any other citizen to say what they want about current conditions. Nobody would say that musicians should keep their views about love and heartache to themselves, would they? What I appreciate are players that, while they have strong views, keep their art at the level of metaphor. A person singing about injustice in a general way doesn't bother me, there is plenty of injustice in all of our lives. And we are all struggling to overcome it. Its when the guy has to specify the exact "injustice" that I might reach for the dial.