I think that Xiang Bo collaborated with the enemy and Xiang Yu's failure had this factor.
Fan Zeng is clever, but he is too old. Old people often have the temperament of children. So I died in anger. As a politician, Fan Zeng does have some shortcomings, but he will never be a lame politician. On the other hand, no one is perfect and no politician is perfect.
Furthermore, from the future of Fan Zeng and the success or failure of Xiang Liu, we can see the importance of Fan Zeng in cross-strait confrontation.
According to this professor's thinking, the traitors during Japan's invasion of China were all good people and should be rehabilitated for the Khan traitors.
Carnivores are contemptuous. I think this professor has been above himself for a long time, either grandstanding or eating too much meat.