Hong Niu was the owner of the second largest trading company that arrived in Elm City. His Red Bull trading company was second only to Zhang Chun's Blazing Winds merchantry in the metal ore business.
When Zhang Chun recounted his humiliating experience at the Pleasant Dream Inn, Hong Niu sensed a slight bit of hypocrisy in his words.
As a fellow Citizen of the Furnace Fire Empire, Hong Niu thought that he had the right to judge Zhang Chun. But what right did the people of the Holy Wood Empire have to expose the flaws of Zhang Chun?
Being a patriotic Citizen of Furnace Fire Empire, he was enraged that one of his fellow merchants was treated this way by the people of Holy Wood Empire.
Since there were plenty of other Inns in Elm City, Hong Niu had no trouble boycotting the Pleasant Dream Inn. He also had no problem when Zhang Chun asked them to embargo a single person called Ikasa.