Here's a question:

There is clear evidence that as homo sapiens became the dominant human species, we absorbed and assimilated neanderthal genes, meaning we must've bred them out of existence, somewhat like the great replacement is about to do with the few of us in the west who do breed.

The question is, why isn't it the /pol/ ambition to assimilate the mutts of the world of 8% black or 12% japanese or whatever, into the White ethnogroup as it slowly is put to replace the rest of the world as the dominant human group, just like the homo sapiens?

There is nothing that says that just because you have the racial genes of something else, it has to be expressed. Epigenetics tells us that which genes are expressed is based on the situation, and so that would mean that integration of other races, while maintaining the different white cultures, and the majority white genes, would only serve to be expressed when there is biological call for it.

Why isn't the plan to take not just the racially pure white, but also those right on the periphery of the racially pure, and join together? Why is an a man of a ten percent, four percent, or tenth percent nigger-esque heritage not able to contribute to the future of the human race?

What's the obsession with racial purity instead of racial meritocracy?