@whiskeyron
I have, in the past, wanted to use the same argument as yourself
// no one (or very few) wanted to live with '' The Natives'' //
as a prelude to saying "the British Raj never bothered to blend in, so why should our incoming colonists?"
But I knew this was wrong, because I'd seen the "Who Do You Think You Are" episode which addressed this subject because it pertained to a UK celebrity (mentioned on the Kutcha Butcha wiki page).
http://www.theguardian.com/uk/2002/dec/09/britishidentity.india
https://en.wikipedia.org/wiki/Kutcha_butcha
(mentions the terms mulatto, quadroon, octaroon, with links to pages for each)
https://en.wikipedia.org/wiki/Anglo-Indian
This made sense out of a documentary I'd seen some years prior in which there was a crowd of 50-100, staring fixedly at the camera and I was struck by how 'European' a large proportion of the faces looked.
Counter to that, I recall a fellow undergraduate who blagged his way into some technical job, in Australia and returned, some months later, a tasteful shade of mahogany.
If fiction like Doctor Who stays true to form, the future is brown, anyway.