Suppose you are injured or are having chest pains and need medical attention urgently.
Then what is the link between having a cell phone and surviving?
I would wager that effect is several orders of magnitude greater than any cancer effect.
If you carry a cell phone, but use it ONLY for emergencies, then your exposure to radiation is tiny, and it would be a potentially valuable tool.
If you carry it and hold it against your head 5 hours a day, then your risk increases (or so some "studies" would claim).
You're not making any kind of a logical analogy here.