where I disagree is the belief that the existence of guns in and of itself is a problem and that people who carry guns for the Judgment self-defense purposes are automatically suspect.

Suspect is not the word I would use.

But regardless, guns objectively are dangerous, and therefore often a problem. Simply owning a gun increases the chance that you will kill yourself or somebody else.

https://med.stanford.edu/news/all-news/2020/06/handgun-ownership-associated-with-much-higher-suicide-risk.html

https://apnews.com/article/science-health-homicide-d11c8f4ac07888b19309c3e1ff2ae3c9