Some related points:
* With the advent of cheaper DNA testing, more and more are discovering their genetic origins and 'admixtures', and finding many surprises. And more, this DNA research is building trees of connection, deriving the ancient populations and their migrations, where peoples separate, develop distinguishable characteristics, then remix again. It's very difficult to see how any knowledgeable and experienced genealogist, with practical knowledge of DNA testing, can possibly be racist, unless they have an agenda, a chosen point of view, where they stubbornly pick and choose facts that appear to align with that world view.
* Humans are after all the same race, with essentially equal DNA. There's a large diversity in traits, but differences in genes are basically just molecular rearrangements. Our differences are only caused by gene differences, where simple changes result in differing hair color, skin color, and eye color. While a particular gene mix may result in a specific set of talents, traits, and defects, I can't see any logical basis for declaring superiority of a population, just from a particular gene mix.
* The whole idea of a 'master race' or 'royal blood' is such a silly and ignorant idea, a self-defeating concept. The moment you limit a gene pool, you limit diversification, and you increase the chances of recessive traits and diseases, thereby slightly decreasing the future quality of that population. If you want improved genes, you want diversity, more mixing of very different peoples. It's not a guarantee of course, but increases the chance of superior talents, by increasing the chances of individuals with some of the best genes of both gene pools. Tiger Woods is not a perfect person, but he *is* an exceptionally gifted athlete, and that's almost certainly because he came from 2 very different nationalities.
* I don't want to hurt any feelings, but it always bothers me when I see the hunt for connections to royalty. Besides generally being scoundrels, and self-entitled, selfish prima-donnas, they were significantly inbred and unhealthy. You want 'royal blood'? You want some of the unhealthiest blood lines ever! You are much better off with as little 'royal blood' as possible. (I'd be much more impressed with connections to Da Vinci or Newton or the like, or to world champion athletes.) For the sake of their children, 'royals' should have ALWAYS married 'commoners' (a heretical concept!). And for the sake of their children, white nationalists would be better off marrying from the peoples they despise. They should be thankful for any non-white blood they already have.