Many advocates for personal freedoms support the elimination of laws against 'consensual offenses,' which typically include activities like drug use, gambling, and certain sexual practices. However, it remains debatable whether drug use can genuinely be seen as a consensual offense. Beyond the numerous crimes such as theft and assault linked to drug users, which are separate from the act of drug use itself, the addiction can inflict significant pain on those around the user. For instance, family members and friends of the user often experience distress as they observe the decline and potential demise of the user. In this light, drug use is hardly a consensual offense.

Which of the following, if true, most significantly undermines the argument above?