Uh yea problem is it's only that One guy Abadango that's pretty much carrying Japan all the way with him being the best Mewtwo player in the world. I hear Ranai is good but is slumping lately, it's this Kamemushi character that baffles me a bit I have no clue about him honestly but looking at him hopefully he's better than Scatt for Japan's sake!
I find your ignorance both astounding and amusing.
EDIT: Japan has the best Mewtwo (Abadango), the best Mega Man (Kamemushi is at least twice the mega man ScAtt is), the best little mac (//), the best Villager (Ranai), the two best sonics (Komorikiri and KEN), the best Pit (Earth) and the two best peaches (Kie and Umeki). Additionally, pretty much all the top Duck Hunts outside of ImHip are in Japan, and character diversity in Japan is unreal. On top of that, every single top player in Japan is capable of winning a japanese national. Every. Single. One. Japan is an amazing region, arguably the best region in the world, and the fact that you know nothing about them just baffles me.
EDIT2: Predictable "But like none of these players have results outside of Japan": Japan as a country is extremely hard-working and their players have full-time jobs, making travel outside of Japan for the required amount of time to attend a multi-day major difficult. "Professional Smasher" isn't a career in Japan.