  It also makes classic utilitarianism subject to attack from many angles. Persistent opponents posed plenty of problems for classic utilitarianism. Each objection led some utilitarians to give up some of the original claims of classic utilitarianism. By dropping one or more of those claims, descendants of utilitarianism can construct a wide variety of moral theories. Advocates of these theories often call them consequentialism rather than utilitarianism so that their theories will not be subject to refutation by association with the classic utilitarian theory.