https://www.newsweek.com/1-5-us-gun-owners-are-drug-users-mental-health-problems-survey-874688

The stigma and judgement that often accompany diagnosis of any mental health issue are often feared at least as much as the any mental illness itself. This stigma prevents people from asking for help when they know that they probably need it. There is also a pervasive fear of the loss of one’s rights among gun owners and veterans potentially suffering from mental illness.