You got pretty good answers last time you asked this. Were they insufficient? I don't see that you responded to any of those answers: https://linux.community/post/837122
And clearly, he works/lives in a place where he has this kind of character around. It's not really fair to say "why are people like this in general".
Like if this guy works at a redneck pawnshop in the middle of nowhere, I can imagine he gets a disproportionate amount of these opinions from people who can't read the room.