There is a growing movement of people who oppose vaccinations due to the "risks". These people, recognizing the real risks of vaccinations (yes, people do die from them) can avoid those risks while being surrounded by a vaccinated population that insulates the non-vaccinated from disease. Their folly comes from promoting non-vaccination, thus reducing that protective vaccinated population.
Same with firearms.
People enjoy a high degree of safety, a safety born of armed individuals that strike down the "disease" of crime. Guns are a "vaccine", CCW is a "vaccination". Those vaccinated individuals suppress the disease, with rare negative side effects. Feeling safe from the disease and seeing the rare negative side effects, some promote the elimination of the vaccine...terrorizing those who know the value and elminating the insulation from the disease. Should they succeed, they may rediscover the great value of the vaccine, and face the real horrors of the disease that it kept at bay.