People said the exact same thing about reddit being only good for technology enthusiasts and porn in the early days.
In my experience that is just how it goes on the internet. Nerds, furries, and porn collectors, are the early adopters for most places. The normies follow along years later.
Where do you live that cops deserve respect? Nobody DESERVES respect, least of all due to their shitty job. If you want respect you earn it, and cops have been doing the opposite (in north america) since their inception.