They remove chemicals that are considered unsafe from the market all the time (Pb from paint for example). If it wasn't BT don't you think cigs would have been taken off the market a long ago?
No. The same could be said for alcohol, (and other products, cars, motorcycles, etc.), but for cigs, up to the 90's 30% adults still smoked and before that 50%+ - that's too many voters to dismiss.