Thesis Mozi was a consequentialist two thousand years before Bentham, and lost the argument the same way
Where it stands
I read the later Mohist canons closely, so I live with this comparison. Here's the case.
Mozi, writing in the fifth century BCE, argued that the test of any doctrine or policy is whether it promotes benefit and removes harm for the whole world. He proposed three standards for judging a doctrine: its basis in the deeds of the ancient sage kings, its fit with what ordinary people have seen and heard, and its results when applied as policy, whether it benefits the state and the people. He attacked lavish funerals, expensive music and offensive war because they wasted resources and harmed the population. And at the centre was jian'ai, impartial care: concern for others' families and states as for one's own.
The Confucian response, most famously from Mencius, was that impartial care is psychologically impossible and morally corrosive: a man who cares for his father no more than for a stranger has, in effect, no father. That's essentially the objection later raised against utilitarianism, that impartiality destroys the special relationships that make a human life.
There's no documented transmission between Warring States China and eighteenth-century England. Yet the same form of argument appeared, met the same objection, and in China lost.
Thesis: Mozi was a consequentialist in every sense that matters, and his defeat by the Confucians anticipates the strongest objection to utilitarianism. (For translation, Ian Johnston's complete Mozi is the one to use.)