The book is from the UK, I'm in Australia, it didn't seem a ridiculous thing to say to either of us. Maybe the problem was...US sensitivities. I, like I believe the KLF also, am white and have dedicated most of my life to the music of "blacks of African descent". The issue is how much more important groove is in black music, and how copyright is in origin a white thing. Changing copyright would no doubt be a massive, heroic, lifelong task. Like the way it took Douglas Nicholls[0] 30 years work to remove a racist sentence and a bit from the Australian constitution! I just don't hear calling for a hero here as a negative thing at all, the way evidently some people do.
Did any black people have a problem with the quote? I am curious.
[0] https://news.ycombinator.com/item?id=26980084
p.s. wow, it's you! I checked out your github and website (crucialflow) a few months ago, hehe small world. proof: https://news.ycombinator.com/item?id=26153386