No argument for declawing has to do with the cat's welfare except vis a vis the caretaker's furnishings. Any argument that speaks to protecting a person or child from being scratched ought to factor in the graver danger from a cat bite . Clear tape on furniture can deter. If you mist, try to not let Kitty realize you are doing the misting. Histrionics often tells Kitty his bad behavior had the desired effect of attracting your attention.
Cats are emotionally more like two-year olds, who think they are the center of the universe.
Columbo, my detective cat, used to awaken me daily when it suited him by clawing my new furniture. His paw would dart out under the door as he meowed piteously. Feed Wet and Dry Food Meals are the highlight of Kitty's life. Many animal communicators start by asking Kitty about favorite foods. Celery and apples are good for our teeth but few make a mainstay of them.