When I adopted my newest kitten, Gracie, back in July of 2007, the adoption policies included a paragraph I hadn't seen before:
Carver-Scott Humane Society will deny adoption of a cat or kitten based solely on the decision of the adopter to have the animal declawed. Declawing is defined as the amputation of each toe at the first knuckle.
I had no problem with this "Claws Clause" in the contract - Gracie was going home to two 5-year-old uncles who have all 40 toenails intact. Increasingly, the United States is catching up with the rest of the world, where declawing has been banned for years. The surgery is illegal or performed rarely throughout Europe and in Brazil, Australia and New Zealand.
Declawing is amputation
Declawing is actually amputation, removing the claw by cutting off the part of the toe that it is attached to. In addition to the pain caused by amputation-times-ten (which could include permanent "phantom pain," based on the experiences of human amputees), cats are left without an important means of defense and, some critics argue, have their balance and gait impaired.
That seems like harsh punishment to a cat for acting on a deeply instinctive urge. Cats don't scratch to "sharpen their claws," as the common phrase suggests. They mark their territory with the sweat glands in the pads of their feet - just as they do when they rub their faces against a wall, a piece of furniture or their owners' legs. Secondarily, when cats dig in their claws and stretch, they are working the muscles in their legs and backs - a form of cat yoga.
Functional alternatives
What are the alternatives? For me, it's simple: Buy the cheapest upholstered furniture I can find, and replace it when the stuffing starts to fall out. That is not an acceptable option for most people. Here are some tips: