Did disease not account for the vast majority of death? Even still, I never discounted the brutal conquest that was engaged in. My point is that Europeans aren’t special for brutal conquests. Imperial Japan is a prime example this.
You’re also treating a bunch of competing individuals as a hive mind with a coherent plan. I find that “grand scheming entity” kind of narrative to be just as naive as the people buying into racist narratives. It doesn’t make sense when it’s Jewish people and they’re a smaller demographic than “Western European”.