Microbes and Cancer

I've remained firm in my hypothesis for a while now that cancer is likely caused by pathogens, pleomorphic pathogens, possibly due to precisely by what Jobin suggests: our modern diet. Our modern diets are full of chemicals, toxins, and preservatives, killing off beneficial bacteria in our biomes and negatively altering our entire body's environment as a result, weakening our immune system, leaving us susceptible to aggressive alterations in behavior in what are normally commensal microbes in our system.
.. apologies for the run-on sentence.