Ha, I’m Korean, and I think I scored a 6 out of 10 on the “Am I Asian or Not” quiz I found on the internet a while ago. That’s tough stuff there.
Seriously though, go gobear with the KP (Korean Pride). I blame it on the Korean’s not having actively attacked any major world powers in recent history. That, and the Japanese seem to make all the good candy. At least that’s what I’ve discovered in the Korean grocery stores everywhere I’ve lived.
More on topic, I hope your friend was joking. My friends and I joke like that all the time. If he/she wasn’t, though, then it’s all about breaking out the hapkido on him/her.
See, the correct response is to roll your eyes and say, “What the fuck is wrong with you Italians?”
That is, of course, assuming that your friend isn’t of Italian ancestry. You do know, right?
Daniel
You are right.
Look at the Canadians?
Exactly.
Korea is the Canada of Asia.
Wow, I get the best of both worlds then. I’m also a Torontonian. 
… and hwa rang do, hapkido, jeet kune do, tae kyon…
I knew that, and I’m one another of them round-eyed Americans who pronounces them all whoop-ass.
VunderBob, the fattest TKD 1st Dan in Virginia
1st Dan. what about the 2nd dan or third…did you whoop ass on any Tim’s or Mike’s. Or is Dan the Man?
Dan’s definitely the man. 
Busted my foot (2 toes and the matching metatarsals) in a tournament when my roundhouse kick connected with the elbow of a guy named Steve…
Wow…and I thought stubbing my toe on my desk was painful.
I didn’t even know I had any metatarsals to break…
On reflection, I think it’s a jock thing, because David Beckham has them as well.
Maybe it’s just that I know a lot of transracial adoptive families, but I might have asked the same question (well, it was kinda dumb seeing as the name was common, but you get my point).