Trust me...
...when you have a German mother and lots of German relatives, many who were victimized by Nazis...linking Nazi atrocities to some sort of genetic trait that is shared by all Germans in their blood is quite offensive.
I got the gist of what you are trying to say, but to someone who has 'German blood' in their veins it reads as a slur against Germans.
The only just comparison to Nazis ARE Nazis. As a political movement and then government with a set of goals, beliefs and methods, it was irrelevant whether you were German or not, agreeing with the Philosophy and working for the NAZI cause was what mattered.
;-)