Absolutely right illegal drugs do damage individuals and society; otherwise moral, responsible, contributors being thrown in jail and branded with a felony for the rest of their lives does do irrepairable damage not only to the individual, but to their families and associates. Militarizing our police departments with the right to kick down doors armed to the hilt, confiscation of personal property without recourse, and financially wiping out those of modest means trying to pay fines, lawyer fees, and keeping the bills paid while under the thumb of the legal system.
Society suffers wasted time and effort of police departments picking the low hanging fruit of the drug bust, not to mention the costs of arresting, trying, convicting, and imprisoning 'offenders' who would otherwise be earning a living and paying taxes, when the legal system could be dealing with actual crimes and criminals. Drug use was a minor problem before Nixon decided to use the War On Drugs to persecute his least favorite members of society; blacks and hippies. Yea, illegal drugs are a huge problem that if anything are medical, not statutory.