It is ironic that Confucius's son died an early death. We can infer that the death of Confucius' son, Carp is ironic, he suffered an early death when the symbolism of the carp fish is longevity, because carps can get very old, it also represents the dragons due to big scales on the body of a carp. According to the meaning of the carp Confucius' son, Carp, should have a long live which did not happen.
I guess you're talking about Animal Farm. Well, the irony is that the animals came together and fought to overthrow the farmers who, they believed, were their greatest enemies, but in fact the greatest enemy of animals was "power." Once the farmers were defeated, the animals achieved their dreamed freedom, until "power" fell on the pigs, they began another kind of exploration and the animals lost their freedom again. That is, as much as there is a fight against an enemy, another will arise, once he has power to concentrate in the hands of a single person, or a single group.
When I talk about this "power", I am referring to being able to be superior and oppressing others, because I think it is more certain, stronger, smarter, etc.
I hope it helps.