It's very simple. Every other Asian country has grown to detest South Koreans. Because they have been ..... and bitchslapped around by their big brother neighbors for most of their history, they have this insane bult in insecurity, which directly causes them to have this unfathomable sense of entitlement. They way they deal with foreign companies is absolutely insane (the reason there are no apple stores in SK).
Also, they go abroad to other asian countries, acting loudly and obnoxiously, acting like everthing belongs to them, and causing drunken mischief everywhere they go. I could really go on and on about this but I'm going to choose not to.
This excerpt is from an article from the Chosun Ilbo:
"Koreans rank among the top clients of prostitutes in Southeast Asia, ahead even of Japanese and Chinese travelers, extensive research suggests. The conclusion comes from research by the Korean Institute of Criminology that included field surveys in Vietnam, Thailand, Cambodia and the Philippines, study of UN reports and other relevant documents, interviews with local social workers and neighbors, and arrest records at local police stations. "
"In its 2010 report, the UN Office on Drugs and Crime said Korean men were the prime clients of child prostitutes in Cambodia, Thailand and Vietnam. The U.S. State Department's annual report on human trafficking also points to Korean men as being the main clients of child prostitutes in Southeast Asia and Pacific islands, and added that the Korean government has yet to crack down on offenders or attempted to curb the trend."
In terms of socially acceptable behavior, South Koreans are truely unlike any other people in the world.