Yes, let's take a closer look at your source:
Weekly software sales (lifetime)
01. Call Of Duty Modern Warfare 3 (Square Enix, PS3) 180,372 - New
02. One Piece Gigant Battle! 2 (Namco Bandai, DS) - 116,062 - New
03. Ni No Kuni (Level-5, PS3) 67,032 - New
04. Super Mario 3D Land (Nintendo, 3DS) - 62,318 (499,250)
05. Saints Row: The Third (THQ, PS3) - 36,222 - New
06. Final Fantasy Type-0 (Square Enix, PSP) - 30,543 (682,173)
07. Call Of Duty Modern Warfare 3 (Square Enix, 360) - 30,467 - New
08. Hatsune Miku Project Diva Extend (Sega, PSP) - 30,042 (214,715)
09. Sengoku Basara 3 Utage (Capcom, PS3) - 25,771 (149,968)
10. Ultimate Marvel Vs Capcom 3 (Capcom, PS3) - 22,436 - New
You're right, CoD did top sales... on it's release week. Not to mention that Japan gets CENSORED versions of CoD games. Look at the rest of that list bro.
We can't really compare anything against japan, they have no obesity, no drug use, no violent crimes, and NO FUN.