https://en.wikipedia.org/wiki/The_Holocaust
Your favorite Fuhrer slaughtered 6 million Jews, many more millions dead overall in Europe due to WWII which at every junction was war of choice launched by the whims of Hitler himself.
https://en.wikipedia.org/wiki/World_War_II_casualties
The entire WWII conflict killed 70-85 million people around the world, the deadliest war ever. Many of those perpetrated by Hitler's close allies, the Japanese Empire who launched their own wars of choice against Korea, China, the U.S., etc.
Yes, that's a destructive legacy, and your inability to recognize that is hostile to the truth of the historical record.
Now cue your attack on Wikipedia, another emblem of your hostility to reason.