"I have been to many folk concerts. I have seen the mayor of baltimore sing IRA songs following them up with anti british chants and black glove salute (he is now governor of Maryland) I have seen women sing women's liberation songs followed up with a few choice words of politics against men etc."

By your own definition, those weren't concerts. When have you attended "a folk song performance ... when people of all varieties of political point of view join in singing. When after the song is over the presenter talks about the following and related topics: Rhyme scheme used in the lyrics, vocabulary used in the lyrics, history of the song, cord progressions used in the melody, history of the melody, background of the presenter, other versions, instruments used....so much to talk about"?.

Conrad, it does matter where you are writing from. I can forgive you if you are at a distance and describing a situation I don't know. If you feel you can speak from an American perspective, however, I can say you are wrong and purposefully provocative.