Not at all. Their worth as human beings is neither greater nor lesser than those of "pure" ancestry. Being a typical Midwestern American, I can name 7 different ancestries from my family heritage, and when I was in Europe, I found it fascinating that people were 100% from one ethnic background, and they found it fascinating that I have such mixed heritage. We didn't think of each other as being greater or lesser based on our ancestry or background. We were simply different in terms of our family history, and we appreciated that difference. There was no condescension or racism involved.
You are attempting to take my statement of an objective fact of genetics and medical science and twist it to make it sound like I'm saying any one group of people is inherently "better" or "worse" in terms of their intrinsic value. That is not at all what I am saying, and I don't appreciate your attempts to accuse me of racism, especially when you yourself have blatantly stated that interracial marrriages are sin.
Out of curiosity, would you consider me a product of many sinful marriages? In my ancestry there are Germans, Dutch, Irish, Scotch-Irish, Scots, Hungarians and French-Canadians, all intermarrying with one another over the course of centuries. Am I born of many sinful marriages according to you?
Or what about my former roommate? He's 25% Cherokee, and the rest is all white. Were his ancestors sinful for marrying outside their "race"? Is he a product of sin?