Don’t forget, that the 1911 was created to fight in jungle warfare to defeat Philippine Moro guerrillas, because as we discovered, the Moro’s would take drugs that desensitized them so that they would not feel pain and could fight on, even wounded by the .38 cal. The Army had to bring back the .45 caliber Colt M1873 single-action revolver as it was more effective against the Moro guerrillas. Not only that, but even after shooting it a couple of hundred times, you could also use it as a hammer (just kidding, but it is way more durable than the Gucci 9 MMs of today).
It wasn’t until the military started allowing females in to various rolls that they had otherwise been excluded from in 1986 that the military dumped the .45 Cal 1911 in favor of the smaller, less recoil 9 MM...You can disagree with me all you want, but there was actually a lot written about this back then when the decision was made and why and while it was wildly unpopular to “state the obvious,” none-the-less, it was still the truth — Women in the military have a harder time handling the .45.
The 9mm today is not your grandfather’s .38.