Said I was sick of this subject, I know. But I just found something (here) that I had meant to take up a long time ago. This: ... establish a disconnect between the novel and the song.
Meaning, that if a novel is offensive to some people, they should not necessarily find a song written in that novel offensive.
Not so easy.
Take a few hypothetical questions.
Note: your answers to these may vary, may not appear consistent to yourself or others, may not even have any bearing on the song and novel referred to above. All of which is fine with me. (My answers are not consistent).
Just give the questions some thought, that's all.
1) Would Parsis be willing to sing a song from a book written by some Persian mullah from the time they were persecuted and driven out of that land, a book hostile to Parsis?
2) Would Jews pay homage to a passage from Hitler's Mein Kampf?
3) Would Hindus -- or at least those Hindus who were offended by the presence of the Babri Masjid -- chant lines from Babar's Babar-Nama?
4) Would Catholics in Northern Ireland willingly sing the Orange song The Sash My Father Wore? (See brief discussion about whether it is or is not sectarian here for example; there is plenty of other stuff on the Web about it).
5) Your hypothetical question here.