There are it seems two forces at work.

1) The music that has lasted and continues to last belongs to the world--such as it is

2) As a person and musician I would not wish to associate with people who pervert the intent of that music

If someone writes a song that has words with which I fundamentally disagee, I havw, do and will vote with my feet. That's to do with the music. Would I then want to have a beer with that person? I think not.