Whites, European and their descendants, are the superior race. Not because of skin colour but because of culture. Most coloured cultures are rife with infighting, corruption and wars with each other. This makes it easy for them to be invaded and dominated by a race that has learned to work together.
This isn't a new theory, it goes back the the Romans and before.
Working together allows a culture to develop faster than one that doesn't work together.
https://en.wikipedia.org/wiki/List_of_civil_wars