"If cancer specialists were to admit publicly that chemotherapy is of limited usefulness and is often dangerous, the public might demand a radical change in direction—possibly toward unorthodox and nontoxic methods, and toward cancer prevention. ...The use of chemotherapy is even advocated by those members of the establishment who realize how ineffective and dangerous it can be." - Ralph W. Moss, author, The Cancer Industry
Yes, like what Ralph Moss said, even cancer specialists are aware of how ineffective and chemotherapy can be in treating cancer. I remember one doctor shared in his interview with Dr Mercola that only a few cases of cancer may be successfully treated with chemo but the majority of cases do not respond well to chemo, hence that's where natural remedies come into the picture, such as eating anti-cancer super foods such as turmeric, soursops, mushrooms and so on, getting more oxygen intake and Vitamin D, etc.
"Yes, there are few cancers that respond to chemo, but there are very few. For a hundred different types of cancer, maybe four or five respond well to any kind of chemo. The vast majority doesn’t respond well. And believe me: after 23 years of doing this, they don't know how much money they make.
You know, when they start out, there’s at least some idealism. Even in the most cynical doctor, there was some idealism when went into medicine. And it’s very difficult. I love coming to work – I don’t care what the AMA, the NCI think – and I love coming to work to see the patients getting well. There’s nothing better than that."
Dr. Nicholas Gonzalez (from "Dr Nicholas Gonzalez on Steve Jobs")