There is no sense in being ignorant about this. Mainstream medicine had him first, which usually does not get reported.
"His doctors gave him a gloomy prognosis, but they treated him with radiotherapy and chemotherapy to try to shrink the cancer. He kept the diagnosis a secret from all but his closest friends."
http://www.nytimes.com/2005/11/15/health/mcqueens-legacy-of-laetrile.html
I don’t know what you’re saying. “Ignorant”? My understanding is the coffee enema killed him via heart attack. Is that incorrect? If it is, I am ready to admit my error.