You are missing my point or maybe i'm being unclear.....It probably (imo) doesn't matter to anyone how they identify, in fact other people may not be aware at all how an individual identifys, regardless the person is likely to be treated differently (better, worse) based on assumption , prejudice, racism dependent on how they are perceived by those in power , in the majority.
Also
strung out surely one can be white and Malaysian in the same way one can be white and Jamacian or Black and Scottish.....but that is not what we are talking about is it?