“Why don’t you climb a ladder and try shooting off a handgun
It’s not like in the movies.”
OK. YUP. DONE.
It’s 1000% doable.
Shockingly, a Glock or Beretta (most likely pistol carried) is remarkably EASY to shoot with one hand. Even from a ladder.
But, you are correct, unlike the movies, I run out of ammo when the magazine is empty.
So, while hanging from a ladder with one hand, you would pull your pistol out of it's holster, disengage the safety, raise the pistol above you and holding it with only one hand, fire at the suspect who had a rifle already pointed at your head ?
I think you are overestimating your abilities (and your courage). Try raising a pistol above your head and firing with one hand with your hand cocked at at 90 degree angle. I don't think you will find it 'surprisingly easy'.