Ditto. Bizarre and fascinating.
As citizens we have a little more freedom than you subjects.
Back to the OP.
Let your wife find a gun. It's going to be hers to shoot. She needs to find the one thatworks for her.
I'm still trying to figure out why a semi auto is out of the question?
If she can't operate the slide, then she's not going to be strong enough to handle the recoil of a .357. It's that simple.
If my 7 year old can rack the slide of a handgun, your wife can.
It's all in the technique. Push/Pull.
I bet you and thusly she holds the firearm with the primary grip hand/arm fully extended and pull back on the slide.
Proper technique for anyone to rack the slide is, bent elbow on primary arm, Then with support hand grab the top,back of the slide. Pull backwards on the slide WHILE pushing forward on the frame/grip. Much easier to do. If that doesn't work. Bring the firearm to belly button height, perpendicular to the body(pointed in a safe direction) and use my above method. This will give even more leverage to do rack the slide.
If it's a strength issue, then if she can pull the trigger on a DA revolver, she has enough hand strength to do this.
So many times, improper form causes people to be bad shots or incapable of using a firearm that other people with similar ailments have no problems with.