Why do people continue to deny natural cures and preventatives for cancer?

Quite frankly denying that apricot kernels apple seeds and the like are not cancer curative and or preventative is foolish .I suppose that garlic , ginger ,mangoes ,papaya, citrus fruits,watermelon ,etc.etc.etc. are all ineffectual as well ? The problem is and will always continue to be is "The Love of Money is the Root of all Evil " imagine a cure for cancer what billions upon billions would be lost what a joke ! Instead lets bombard people with radiation that really helps" unbelievable"