The government bans things

We do not have a right to tell other people what they can and cannot do just as we do not have a right to tell them how to behave. Prohibitionism is inherently authoritarian because it relies on the state having authority over the individual. Since in a free country we are free to act however we like provided we do not hurt others then prohibitionism is inherently illiberal and statist. Authoritarianism is wrong because we have control and responsibility for our own lives. Prohibitionism is inherently authoritarian and for that reason it is wrong. If there is no government then prohibitionism would be impossible because no one would take instructions from another person. Prohibitionism relies on the existence of the state to be justified and for that reason it is false. Without the government there would be no prohibition of drugs and so there should be no prohibition of drugs. Without a state there would be no prohibition of drugs and we would be free to consume whatever we like.