Her gap in logic was this:
Jews were born Jews. While people convert to it and away from it, that didn't matter in the 3rd Reich. Those born Jews were persecuted for just being born as if they were a race and not a religion. Your name, your appearance, it all "gave it away".
People who hold conservative or liberal beliefs weren't born that way. They may have been born into such a home, and never seriously questioned it (just as with religion), but they can change their views. You aren't automatically a Democrat if your parents were Democrats. If your mother was a Republican and your father a Democrat, you are not a Republican with no power to change it even if you agree with your father more.
Saying someone's beliefs should be immune from consequence is NOT the same as saying someone's birth circumstances should be. Yet many love to make that false equivalence. Look at how many politicians have crossed the aisle over the decades. Not a lot, but enough.
Think if some rich doctor in Germany changed his name and put up a cross on his wall that he was immune now?