I am no racist, So, I don't care where you are from.
I am saying this not because you are Korean. I'd say this to you even if you were Japanese.
"You are the worst man I have ever seen! Who do you think you are?! Are you thinking you are a king or emperor or something like that?! What a conceited man you are! You don't even understand why so many people hate you. It does not matter whether you are Korean or Japanese. No matter who you are, you are simply the worst man, ever! You폐인!"