This wasn’t about the Wannsee conference.
Thanks. I realized that after I sent my comment. The main point being, that whatever law Hitler wanted was hand-stamped and implemented by the Reichstag. It wouldn't matter to Hitler what U.S. Race Laws were. His main attack was against the Jewish religion and the ethic group associated with that religion. Hitler stripped all German Jews, half and quarter Jews (called Mischling) of their citizenship.
Hitler's hatred was also geared towards aristocrats and Jews who had wealth and property, and he stole from both consistently. American blacks and Native-Americans weren't persecuted because they were wealthy or because of their religion. It was solely based on the color of their skin.
Hitler stripped blacks (those from German African colonies) of their citizenship, but it was rare for blacks to be sent to concentration camps, despite the fact that they weren't allowed to hold a job, or attend school. If Jews were married to gentiles, the marriages were dissolved. Same thing with blacks married to white Germans. Those marriages were also dissolved. Black men and the children of those marriages could be sterilized. Many were.
I don't believe Hitler based the Nuremberg Laws on U.S. Race Laws. The Nuremberg Laws were specifically created to remove all Jews completely from society. That's why I don't understand of what importance Krieger's studies would have been.