That's what I'm saying, her entire comparison is way off the rails. There is really no comparison, other than instead of those Germans seeing themselves all as Germans, the Nazis introduced racism/culture as a way to divide Germans, to get neighbors to turn on one another. Her statement suggests that instead of using race/culture, our current structure is using political ideology to get neighbor to hate their neighbor, and if we don't learn from history, we are doomed to repeat it. To that point, I believe that's exactly what's happening today.
We can and should lambaste her for her pisspoor analogy, we could also not treat each other as mortal enemies over political opinions. Conservatives and liberals could actually get along if they wanted to.