Of course there are many different causes of many different types of cancer. But I suggested that we should look for what is common between them, and the common factor is that the cell division that is normally so well regulated (for example by CDK activity) is not so well controlled in cancerous cells.
And of course there are many anecdotal stories about alternative treatments. But alternative treatments do not work. At least not in a consistent verified manner. That is why they are called alternative treatments and not called proper medicine.
By the way, except for its entertainment value, an alternative theory is fairly worthless if it only describes behaviour, it also needs to predict behaviour. And like genetic mutation, I find that most alternative models perform worse than the original. Topical quote, it's elementary my dear Watson :)