I think the point she's making is that Erik, while German, is far more influenced by his Jewish background, because it shaped his background and had a profound impact on his character development. Therefore, when people disregard his Jewish background in favor of focusing solely on his being German, that's a baffling decision and even a callous one, considering Erik's backstory.

She doesn't say anywhere that Germans weren't victims of the Holocaust. That's not her argument at all. The sentence is question was perhaps a little ambiguous, but I think the context makes it clear that that wasn't its intended meaning.

I understand your frustration on the subject, I just think you're venting in the wrong place, and to someone who has done nothing to warrant it.