Canon is pointless. I like continuity too, but I won't let it get in the way of something good (and Trek has taken that approach with its own canon when they felt like it).
That being said, if Star Trek has taught us anything it is that looks are important, that it matters more than character, and the emotions they evoke. If your name is Khan you BETTER be from India and a brown man because in the future all races will be segregated by skin color, names, and birth place.
.....................wait....do I have that backwards?