If you cross a Larbrador with a Poodle at what point in the dilution does it become a pure Labrador ?......the real answer is never it will always be a mongrel.
The trick is to convince as many people as possible that a " Labradoodle " is infact a new pure breed............hence this new human breed we hear called " mixed race ".
my point is gnash,,,,there are many people out there with a none white ansester,,,very often in the old days covered up,,,so you might have someone with a great great grand parant thats black or asian,,,,it wouldnt stop you being english....there were lot