Forcing them not to mate causes them undue stress and discomfort. The eggs of an intact queen who is not permitted to mate, and therefore can not ovulate, become encysted in her ovaries, which may lead to cancerous tumours. Unlike declawing any form of sterilisation provides a net benefit for the feline species' and is therefore justifiable. For many cat lovers declawing is unconscionable, many veterinarians will not perform the procedure, it is outlawed in some countries, and there is currently no animal welfare organizations that condone the practice. It is this last viewpoint that so many cat lovers find infuriating.
Cats are already wonderful companions.
They do not require any surgical modifications to become the loving companions they are known as worldwide. As many, who have authorized having their cat declawed, will freely admit, it was done to prevent damage to their furniture. Declawing is inhumane. Although, scientifically, there have been no decisive long-term studies to research the behavioural effects, declawing represents a clear and undisputable risk to the cat. No one has the right to mutilate another, for their own personal gain.