I speak for the State, insofar as any one Corporate Citizen can be said to. My blood is pure and my Citizenship is current. I’ve fought for the State and I’ve fought for the people of the State, so please bear that in mind when I speak.
The Achur situation is not very much different from the choice that ANY State Citizen has - the choice to either conform to our culture (within tolerances) and embrace heiian or the choice to depart, surrender their citizenship and seek subsistence elsewhere.
The Achur simply have the ability to remain apart from the State within the territory of the State - because we recognise their right to abide by the ways of their ancestors on the world of those ancestors. As has been said, it would have been very destructive to our culture’s self-image to do anything less than this, in many ways Caldari society is still very much defined by our exile from our Homeworld and the struggle to reclaim it. We couldn’t have maintained the purity of that if we’d treated the Achur other than we have.
Whilst Aria is correct in that an outsider who comes to the State and endures the long process of acculturation, proves his worth and then undergoes the even longer and harder period of integration, is considered a full Citizen and culturally Caldari, there is more to it. The unvarnished truth is that there is still some value attached to racial purity - my own marriage to a Civire woman was far more warmly received in official circles than a marriage with a Deteis woman would have - let alone a Brutor woman or an Intaki woman. So Veikitamo also speaks the truth.
Of course there are no actual laws against mixing racial heritages - one simply has to accept that it will lead to a rockier path to happiness. You are going outside of the common wisdom - you will have to prove the rightness of your vision in the marketplace of ideas. Minds can be changed - a long and successful marriage that produces productive and valuable offspring will overcome prejudices.