Well said.........
The shotgun is powerful and intimidating close up,
kinda worthless past 35-40 yards though. Most encounters happen in under seven yards and the shotgun can be unwieldy and cumbersome at times.
AR-15 carbines are arguably more ergonomic and lightweight for one hand use while fumbling for other things (radio/cuffs/etc.) And they are MUCH more accurate for ANY distance than the sewer pipe. Miami and L.A. shootouts would have probably been different had the good folks in blue been carrying AR's/Mini-14's/HK-93/etc.
That's why Madison, Wisconsin and U/Mass Amherst are at the forefront in this context.
Shotguns are better for ducks and doorhinges though!
p.s. My M1 garand is in my trunk with 64 rounds in the clips. (boom,boom,boom,boom,boom,boom,boom,boom, PING!!!!