We are going to need Nuremberg Two: Crimes against humanity boogaloo, to deal with this. Someone revive Albert Pierrepoint, we are going to need his particular skill set to deal with these monsters.

Honestly, it's going to be hard to do that: With the first one, all the Nazis just said they were only following orders...but at least those people would have "you do this, or you join them and we replace you with a person who WILL".

This time, it'll be hard to punish the people responsible: All the people at the top will claim they were groomed by a scapegoat [likely a dead one] and go back to their business, and the people causing the crimes against humanity have the reasonable "we were threatened into it by our victim, the victim flat-out said they'd kill themselves if I didn't give them the punishment. How can you punish me for something they not only consented to, they threatened and abused me into giving them against my wishes?"