Indeed,
but white families are the basis of European society,
African families are the basis of African society,
East-Asian families are the basis of East-Asian society,
Indian families are the basis of Indian society,
and Jewish families are the basis of Jewish society,
etc, etc.
Every society originates from ONE race, and that race must remain pure in order to conserve that society and it's way of life, because different races evolved to live the best way possible (through survival of the fittest) in the environments where their fatherland was. DNA effects how you think, the shape of your body, the color of your skin, your IQ, how you raise and nurture your children, your philosophy, and your way of life in general. Just look at the statistics to prove my point, and just think about how white people are bad at integreting to the Africans way of life, how the Africans are bad at integreting into the European's way of life, etc. etc.
Finally, some people might say, "Well it's not that's person fault that he/she was born as that given race." Well, that is true, but race still affects everything. Racial conflicts have existed since the beginning of history, and they still continue to this day.
Race and state should be the same thing, that is the natural order, and it society collapses if it is any different.