For starters your ether retarded or underage b8 just going off your retarded idea and your spelling.
Secondly if your lets say 3/4 anglo/celtic/trace and 1/4 asain west african australian abo etc I can always tell and generaly work out some specifics. With other mixes like 1/4 mulato east african native north american etc ot can be harder but its still often noticable.
So your idea is retarded. Skin colour is just a small part of what makes us diferent. Weve ether been evolving or stagnating for tens of thousands of years. Unsuprisingly little changed in people that didnt untill recently leave the stone age like australian abbos much of black africa etc.
The picture with skulls in is a australian abo skull vs a white persons skull.
The one below that is to show that diferences arent just skin deep. Asains jews indians and whites in povety will out perform others that are wealthy.