Shooty - “... I'm not trying to be funny, but we can only abide by the gramma that is written and documented...”
Please don't think I'm having a go at you about this – I'm not. I agree that the dictionary definition is as you say it is. To illustrate my earlier point about the word 'race' being highly malleable, I've found this on-line definition, “...a class or kind of people unified by shared interests, habits, or characteristics...”...
http://www.merriam-we...r.com/dictionary/race
By this definition, train spotters could be described as a 'race'!
My original question could be re-rendered as, “Should the word 'race' be such a loosely defined concept?”