Sorry, I missed these...
"There are dozens of studies that provide a definitive link between smoking and lung cancer as well as heart diease."
AND, there are dozens of studies that DO NOT provide a definitive link between smoking and lung cancer as well as heart disease. Why don't you check out the EPA study that started the "400,000 people die every year from 2nd hand smoke tirade"...oh, that's right...IT'S DEFUNCT, THROWN OUT, FRAUDULENT! Google SAMMEC.
"Why do you think health insurance companies charge smokers more?"
IT'S THE MONEY ... !