1782 white people mate with 1782 black people.
It is guaranteed that 2 children are born for each pair of parents.
How many brains are there total, after everyone has mated?
There are 0 brains total.
Black people don't have brains.
If a white person were to mate with a black person, it can be assumed that they too, have no brain.
Any offspring born from two brainless animals will have no brain.
0 brains.
"If a white person were to mate with a black person, it can be assumed that they too, have no brain"
It is a mere matter of primitive lust. Sub-ape cretin seems to attract individuals who repress their intellectual-capabilities.