....”is everybody who has a gun fairly deemed a threat by virtue of carrying one?”....
Most people who carry a gun wouldn’t be ‘swinging it around’ in a wal-mart, or any other place for that matter, as this guy was...he was a threat for just doing that.
I don’t have access to the video, so I cannot confirm whether or not he was doing anything.
Was he acting in a manner that would cause anybody who did not know him to believe he was a threat?
I read that it was a BB gun (an air rifle) he picked up at the store.
IOW, he picked it up at the store, and he was just talking on the phone while swinging it back and forth. He never pointed it at anyone in the video.
I guess he never thought anyone would think it was a real gun and that he was a threat.