Blacks are genetically pre-programmed to procreate early and often:
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It's how they evolved.
Whites evolved differently: fewer kids, more investment in each.
It's yet another reason the races cannot live together.
So then your entire argument that the white race is being exterminated because the other races are procreating more rapidly then us, is sort of moot, isn't it.
If the non-whites are pre-programmed to procreate early and often, and whites are not, then there is really nothing that you can do to save the white race, is there.
And, in evolutionary terms, the blacks are further evolved than whites as they are able to reproduce so much more effectively, and thus, will end up being more successful in reaching the ultimate goal of the meaning of life: total domination of the world.