Many advocates for personal freedom support the elimination of laws against so-called 'consensual offenses,' which typically include activities like drug use, gambling, and certain sexual practices. However, the classification of drug use as a consensual offense is contentious. 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 emotional pain on others. For instance, family members and friends of the user often endure distress as they observe the decline and potential demise of the user. Thus, drug use may not be accurately labeled as a consensual offense.

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