Everything is a carcinogen. Even water. Dose matters, and most of the "omg zomg causes cancer if you eat it!" dietary nonsense purposefully omits absolute amounts or base rates, lest you realize it's actually as likely to give you cancer as smiling at people.

I don't know what else to tell you. Except maybe that if one gets this single concept, that quantities matter, it becomes immediately apparent why most of the "healthy eating" / fitness fads is just pure bullshit.