yes, you did say that:
Therefore, the Jewish DNA is "more pure," if other DNA, compared with it, is tainted.
But do let's talk color:
Red is red. But blue is blue. Both are pure in their own right. Pure red is pure red, and is not "more pure" than pure blue.
But that's not what we're really talking about here. Once again, you obfuscate the issue by conflating two disparate, but seemingly connected things.
What we're really talking about here is a comparison between a primary color "red," and a secondary color, "purple" (a blend of red and blue).
Are you saying that pure red is purer than pure purple??? That all secondary colors are a sin?
And by that definition of purity, is it OK for one of German ancestry to marry one of Swedish ancestry? That just doesn't bear out in nature, because we know that when the bloodlines get too pure, there are genetic problems. That's why pure bloodlines are called "bluebloods."