Could we have a reality check here. Working on the premise that there is no such thing as bad publicity - except no publicity at all, I bet SoH are lapping this up.
Here we have two talented performers involved in the folk industry whose output occasionally throws up a gem but I happen to think that "Roots" isn't one of them. They know their target audience well and the sentiments expressed in this song will give a voice to all who feel as if they have been disenfranchised and who see their way of life slipping away from them. As I've said before it could also appeal to the loony right. It's preaching to the converted.
Now the lad who wrote it probably only wrote what was in his heart at the time, liked what he heard and decided to include it on the album with the aim of hitting his target audience, selling lots of albums and making a living.
The song won't change the world. The majority of people who live in the real world and spend every day working hard to make ends meet won't, if they hear the song, see it as part of the second coming. They will get on with their lives and SoH will move on to their next project.
Things change through peoples' actions, the example that they set and how they treat others, not through a song, no matter how pleasant or controversial it is.