[pm90]

There are a lot of environmental and societal factors that would get you rather than anything that we probably don't know about yet.

Sugar and Tobacco are probably outliers simply because of the sheer quantity in which humans consume them (or used to, for smokers). That itself increases greatly the chances that they will directly cause some kind of cancers.

Now if in the future, we change our society and progress medical science far enough that we live well past 100 years, that is when we should be worried about dangers from materials that we only occasionally come into contact with. Even then, cancer treatments would probably be a routine thing by then...

I guess my point is that you would more likely die in a car accident than from something we're not aware of just yet.