I think people that talk like you have just got some kind of inferiority complex. Why do you want to screw up God's work by mixing races for? I love the diversity of races and cultures just like I love fish and chips and ice cream and custard, but I don't mix them up in the same bowl for dinner. There are places in the world where you have to get a permit to see the natives in a village and you are not allowed to leave any technology behind and you sure can't breed with them. Would that be your catch cry of "Racist!"?
What's my criteria for who my sons and daughters marry? Well, imagine the people that used to be on the Nazi propaganda posters of the 1930s and 40s. That's what I want my children to breed with. So yes, blue eyes and white-pink skin, but most important of all: BIG, STURDY, ATHLETIC AND STRONG and preferably TALL as well. Just because I want my offspring to breed with that kind of phenotype does NOT mean to say that I think races that are not of that phenotype are therefore "inferior". They are DIFFERENT, yes, but that doesn't imply that they are therefore INFERIOR under God. Because I don't want to breed with a different race (and particularly a race that is physically incompatible with mine) doesn't mean I think my race is "superior". Rather so, I do not want that other race to introduce aspects that I regard as disadvantageous or even highly detrimental. For example, if my offspring hybridized with very diminutive willowy puny pretty race that would then threaten the big strong sturdy build of my race. Some races also have a tendency towards certain diseases, and given that I do not want my genetic line to become prone to those particular diseases it is only logical that I would not want my offspring to hybridize with that.
And of course my aversion to miscegenation, while it is a priority to protect MY race, I am ALSO trying to protect the phenotypes of the races I don't want to breed with. I think the pretty little diminutive brown races with big brown eyes are extremely cute, BUT those of *MY* race don't actually want to turn ourselves INTO that. Instead, I want these pretty foreign races to be able to STAY the way they are, in their already perfect untainted form, rather than mixing with us big heavy-set Northern barbaric brutes. This is why I keep on saying that hybridizing these completely incompatible traits is evil and insane. The result is not an aesthetic "blend", but rather, it completely destroys both physical sides entirely and the offspring just look like ugly out of proportioned freaks. It's analogous to throwing ice-cream into a frying pan of omelette, or pouring several cans of beautiful paints into one pale to make a ghastly single colour, or knocking half the fine and elegant Taj Mahal down and rebuilding it by fusing it in the dark towering Gothic style of the Cologne cathedral. No one in their right mind does these things!