What's the name of a man who is similar to the back pot man?

It's called scapegoat, just like the person who carries the pot. The scapegoat is a Chinese idiom from foreign allusions. This allusion comes from Leviticus in the Old Testament. There are similar records of scapegoats in ancient China, which can be found in Mencius Liang. The scapegoat originally refers to the sheep who took the blame for others in the ancient Jewish ceremony, and is compared to the person who suffered for others. Its structure is formal and can be used as an object, attribute, etc. In sentences, it contains derogatory meanings.