> one can't rule out cancer effects at other, non-ionizong frequencies through unknown mechanisms

Well, you can. That's the whole point.

You pose the hypothesis "unknown mechanisms in non-ionizing radiation cause cancer". Then you do the research, and then when you don't find the cancer effects, you rule out these "unknown mechanisms".

That's science.

> There's also effects of the heat given off by the phone heating your head, but I ignore that.

And so does everybody else, because heat doesn't cause cancer.

Additionally, the phone heats your head? Citation? And not just "well it's microwaves so it probably heats things around it by some billion-thousandth of a degree", but an actual citation of mobile phone radiation heating your head, preferably in a manner that is still somewhat significant when compared to the tiny temperature fluctuations caused by natural cell processes (as, you know, if a mitochondria generates more heat than a nearby phone, the point is probably moot, no?).