Why are people judged so harshly for smoking marijuana?

wow are you serious ? im sorry but you must have just smoked your illegal crapp before u wrote this . and if you dont want harsh awnsers then you shouldent have posted this question . my opinion is that the drug will kill you , same as cigarette smokers , that is a drug its just not illegal . all drugs will rewen your life seriously whats the point , gosh there are soo many inteligent people in this world that are followers and that dose appsolutally no good for anyone and your self .