False dichotomy. As if victims cannot also be perpetrators and perpetrators can't also be victims.
In actual fact, most humans are both in their lives, sinned against and sinners.
The notion that they can't be both is part of the idiotic glorification of victimhood. Victims having replaced heroes in our collective mythology. As if victim is not a role we all play to varying degrees, but a designation for specific people, or more accurately certain groups of people. Same being true for perpetrators/oppressors.
BTW, recent research indicates the actual death tolls at both Auschwitz and Dresden were significantly lower than the conventional wisdom.
So is murdering a thousand people less murder than two thousand? Or ten thousand murdered less murder than twenty thousand?