Thesis Bentham was right that natural rights are nonsense, but wrong about why
Where it stands
Bentham's attack on the French Declaration of Rights, usually published as Anarchical Fallacies, contains the most quoted insult in political philosophy: natural rights are simple nonsense, and natural and imprescriptible rights are "nonsense upon stilts".
His reason: a right is the creature of law. Real laws give rise to real rights; imaginary laws, laws of nature, give rise only to imaginary rights. A right without a law behind it is like a child without a parent.
I want to defend a modified version. The word that is nonsense is not "natural" but "imprescriptible", the claim that these rights are absolute and can never be overridden. As soon as you list several such rights, liberty, property, security, resistance to oppression, they conflict, and something has to give. A theory of absolute rights that are routinely overridden is a theory in trouble.
Hohfeld's analysis helps here. "A right" can mean a claim (someone owes you a duty), a privilege (you owe no duty not to), a power (you can change others' rights), or an immunity (others can't change yours). Much rights talk slides between these. Once you separate them, you can say clearly what a moral claim is without inflating it into something unoverridable.
So: moral rights, fine, as long as they are claims with weights. Natural and imprescriptible rights, nonsense, though not quite for Bentham's reason. Objections?