The definition of a hard drug has nothing to do with whether it is legal or not. Alcohol is a hard drug by the definition of addictiveness and propensity for harm. When it was made illegal, it didn't reduce use and only increased harms. We learned our lesson and made that hard drug legal in order mitigate the harms of organized crime benefiting from selling it.
Similarly all other illegal drugs should be made legal to reduce the harms of them being illegal and facilitating organized crime that increases violence in communities.
In that regard, the silk road was actually a net good. It reduced gang violence by preventing gangs from competing for physical territory. The US postal service delivering the darknet drugs prevented the gangs from being able to enshrine their Monopoly through violence. This was unequivocally good. Similarly reviews by customers increased quality and purity and reduced tainted drugs, reducing harm to the users. Thus, the silk road was a net social good when measured from a social welfare costs and benefits.
