How many KKK members does it take...

to screw in a lightbulb?

None, they just sit around and bitch while pretending their broken lightbulb is someone else's fault.

Firstly, races are a subgroup to species, as a way to differentiate groups within one species, as per horses and dogs. In a natural environment, races are actually very uncomon, its instead human breeding that gives rise to racial differences, and it is always a form of controlled inbreeding which acentuates genetic diseases. In nature, if two populations of the same species gets separeted, they will eventually evolve into two different species, meaning that they are no longer able to produce fertile ofspring with each other (tigers and lions can produce fertile ofspring, but they dont copulate in a natural environment so they are different species).

Secondly, races, in the sense that dogs have races, does not exist in humans. The genetic difference between a german sheperd and a jack russel is far greater than between an greenlandic inuit and an australian aborigine. This is because humans are a very young species (around 200 000 years) which is not enough time for evolution to create different races. And furthermore, selective inbreeding is just as bad as it sounds, do you want healthy kids, spawn with a person who looks nothing like you.