Yes, I agree on the different causes of cancer. However, the body is a related whole, and it is hard to separate a single cause for a cancer ... there are so many poisons floating around the body between the mycotoxins from the pathogens, and the pollutants ingested from foods (pesticides, additives) and from air and water, and I think that they all contribute together to making cells sick. So, from this perspective, any reduction in pathogens and their related toxins will reduce the overall toxin load.
Also, Miracle-Mineral-Supplement boosts the immune system, and is used by the body to oxidize and remove all manner of inorganic contaminants. So it may also have an important and direct role to play in the elimination of toxins which are not directly pollutant-related. At the very least, it frees up the immune system to focus on the inorganic pollutants; but it probably does a lot more than that.
I believe that anti-oxidants are important to the body, I would just suggest to shift the diet to a more whole-foods based, green diet to supply them. This can be done quite well while maintaining an Miracle-Mineral-Supplement protocol, although it is easier done on lower doses. Stopping Miracle-Mineral-Supplement then restarting it defeats the idea of maintaining pressure on the pathogen load.