I'm not personally fascinated with them. But it is what it is. Gun culture has indeed been a large part of American life pretty much since the land was first settled by white man.
As for me, I couldn't care less either way, I'm not personally a "gun guy" but people who are don't bother me. They've got the right, and unless they ammend the constitution, they probably always will.
Do understand there are wide spans of territory in the U.S., even in more crowded areas along the east coast, it can take a hour or longer for a deputy to show up, there could be a situation with a wild animal threatening harm to property or livestock, or of course the possibility of criminal situations.
Sometimes an a sign like Fred's, despite being a little obnoxious could deter possible criminal activity, thus saving the life of the would be criminal, and a lengthy legal case with the property owner.
It's like the rattle snakes tail... a warning... heed it and everyone lives another day.