The US has had success in various FPS games, so his comment isn't entirely accurate.
With respect to StarCraft the obvious answer is that gaming hasn't been a true "profession" outside of Korea. Obviously the US has multiple professional SC2 gamers, as does Europe, but the main difference is that in Korea it's treated like an actual job. Teams ensure their players train for up to 14 hours a day with very few breaks. No one is the US is apparently willing to put in that type of dedication, and so far the US scene has really floundered. Europe is better due to having more dedication, but even they don't train as obsessively as the Koreans.
There's really only been one truly dominant,
consistent non-Korean in StarCraft over the last 13 years. And he's a special case: doesn't really practice much, isn't obsessed with the game, etc. Stephano.

