Okay, he stepped in it. I can’t say it’s not a big deal, but I don’t think he should step down over it.
It’s my take he was probably focused on domestic and military actions in Germany and abroad, and wasn’t focused on the death camps.
He should apologize and be allowed to move on.
I’m sure he feels bad about it. I would.
I wasn’t just German Jews Hitler tried to eradicate. i.e. “his own people”. Was it ?