Shaolin Soccer & Kung Fu Hustle

Two Loves.

The problem I have is the dubbing. Why must the characters speak broken English? I understand that they are Asians, so supposedly they might not speak perfect, accent free American English, but is it necessary to project that into the voice work? I wonder if Americans films shown in China are dubbed with the characters speaking in broken Chinese? I doubt it. It's the only thing that stopped me from totally getting into the films. It's also so unnecessary.