For Avatar, we can certainly use Chinese actors as performance capture actors because any accent issues will hide within the Na’vi accent.
By James Cameron on casting actors from China in “Avatar 2” (and 3 and 4?) as Navi.
(In any case„ viewing Chinese people as aliens is a storied part of American history. Chinese immigrants used to be called “celestials” because they looked so foreign to white settlers that they could be aliens.)