I never donate to cancer charities for cancer cures.
It's not because I'm mean. It's because I believe the cure, or even cures for cancer were found long ago. There is too much money to be made from the back of cancer for too many people. In this respect, it would be a disaster if a cure was identified. Especially if that cure was cheap and simple. This information would never be allowed to reach the general population.
There are accounts of people in the past who have tested their own theories on cancer cures and had very good results. In these accounts, they are inevitably disappear or are threatened into silence, or ridiculed and discredited.
I mean, think about it - supposing it turned out, for example, that a particular mix of garden plants combined with some cheap, readily available ingredient had shown significantly positive results - do we really think we'd be informed?