Eventually the new genetical/wealth class divides would widen so much that you'd get what was envisioned by 'The Time Machine' - a playful, happy but ultimately vacant upper class of child-like peoples who are supplied and supported by a weak, albino lower classes who lurk in the sewers.
Racism will always be apart of life... It's human nature.
It's alright to call a white person white trash but it's racist to call a person nigger.(Which actually has the same meaning)
I have black friends, mexican and asian.