WHY ANTI SMOKERS DON'T UNDERSTAND?

Freedom to smoke is a right as a citizen also trading, starting a business or opposing the government. Why are they pushing to ban smoking even in public places where the evidence of second hand smoke is a myth and people have been smoking in bars and closed spaces before too. Why are they forcing cigarette companies to add anti smoking labels on their cigarette packs? Why not force Macdonald's to show fat people on their burgers as a warning?why not force Pepsi to show a picture of a person't teeth after consuming pepsi or it's other health effects? and why anti smoker's do not understand that the bad effects of cigarettes is for those with overall unhealthy lifestyle and bad diet, etc rather than those who smoke moderately and the fact that smoking DOES HAVE many and many benefits such as relieving anxiety, lowering the chance of Alzheimer and parkinson by up to 75%? why anti smokers do not allow scientists to do more research about the benefits of smoking?what are they afraid of? Tell me your opinion...