Absolutely right. There are natural ways which can replace chemotherapy. I have heard that in Kerala, India, there are few people who completely cure the cancer using natural ointments and medicines. And their success results are over 90%.
That sounds too good to be true. Cancer has been a global issue, and if there existed a magic medicine that was capable of curing cancer like you said, the world would be after it. I think you need to get a reality check on that.
About Chemotherapy, it's painful and it is really tough to cope with for any patient undergoing it. But the thing, there doesn't seem to be an alternative treatment as yet, with that being said, I believe it should be a choice whether or not a patient takes Chemotherapy because it has huge huge impact on the person and the people around the person undergoing the treatment.
Hope modern medicine finds a better solution.