My honest response to "do you have black (indian/chinese/..) friends?" is something like "no idea, I don't usually notice hair, eye or skin color".
EDIT: wondering about the downvotes... does it sound non-believable or something?
This thread needs a mention of Stephen Colbert, one of whose running jokes is that he "doesn't see race" [video].
If it's worth saying, but not worth its own post, even in Discussion, it goes here.