I think someone should do their PhD thesis on why people hate the .40 S&W.
I've never heard anyone say "I HATE THE .38/40", though it is essentially the same cartridge - .40/180/950. In fact, old timers who would kneel at the feet of Elmer Keith say it is a "good mankiller" and "it shoots hard".
People love to say the "answer to a question nobody asked" line. That's not true. Someone asked - how can I get a bigger diameter bullet than a 9mm without going to a .45-sized gun? Someone answered - how about this one? And then the .40 was the standard LE pistol round for 20 years.
So then the .45 guys said - its the .40 Short and Weak!
And later the 9mm guys said - Owwwww! Its so SNAPPY!
But for 20 years cops put bad guys in the dirt with it. I worked a bunch of .40 shootings and I have no doubt it works really, really well.
Why the change?
I was there when the .40 was adopted by the FBI, and was one of the field firearms instructor called to the Mothership to shoot all of the wannabee FBI guns. I picked the HK USP Compact, but nobody listens to me and we wound up with the Glock 22/23.
Twenty years later I was ready to retire, and the announcement was made we were going back to the 9mm. Why oh why?
Because in 2001 19 scumbags with box cutters changed the world in general and the FBI in particular. Our number one priority became preventing another attack.
We spent a gazillion dollars on computers and nerds to squint at them. The ammo budget stayed the same. I mean literally the same dollar amount. Not adjusted for inflation.
We went from unlimited ammo for practice to here's a box to a guy handing out just enough ammo to qualify and shooting our carry ammo only once a year.
Somebody noticed 9mm was substantially cheaper than .40, particularly in practice ammo. 14,000 agents times 1,000 rounds a year for quals equal 14 million rounds a year. Every year. Guns are cheap compared to that.
Whenever you hear someone say "advances in bullet technology" just nod and replace that in your head with "9mm will work and its cheaper". I was there.
My buddy is an otherwise normal person who loves to shoot. He was looking for a truck gun and I found a .40 SV thing for $135 brand new and texted him to ask if he wanted me to pick it up for him. He texted back I HATE THE .40!!
I was in a gun shop years ago and a woman was shopping for a gift for her husband and the guy showed her a nice .40 cal. She said MY HUSBAND HATES .40s!!
I just don't get it. I think it threatens peoples manhood somehow.
I like it. It ain't going anywhere.