[wyclif]

Former land surveyor and GPS/GIS technician here (now a developer). I have a lot of sympathy for your perspective. I remember when consumer GPS became a thing and getting a little Sheldon Cooper on folks who used "GPS" as a synonym for consumer-grade hardware: "don't you mean GPS navigation?"

But that train left the station a long time ago, and I've stopped arguing with people about it because it's a losing battle. Every normal I know, from my parents to my network of friends, refers to Garmin and TomTom auto units as "GPS." They have unfortunately become identified in the common mind with the technology.