Everything that used to be a sin is now a disease.

Maher’s line satirizes a modern shift in moral language: behaviors once framed as “sins” (failures of character, will, or virtue) are increasingly described in medical or psychological terms (“diseases,” “disorders,” “addictions”). The joke points to how this reframing can reduce stigma and encourage treatment, but also how it can dilute personal responsibility by treating wrongdoing as pathology. Implicitly, Maher is critiquing a culture that prefers therapeutic explanations over moral judgment, suggesting that the medical model can become a catch-all that excuses conduct rather than evaluates it ethically.