So folk music is all about the working class singing about themselves or indulging in class warfare?   Obviously not enough copies of Childs ballads around - or unopened.

Away from the ballads, there are folk songs about the middle classes - think of all the tailors, millers, sea captains and farmers. Not all are derogatory. Isn't Bold Johnson about a butcher? Doesn't one heroine dash away with the calico printer's clerk?