Would you like to be rich and famous inside of a year? Write a book about how, on balance, Hitler’s rise to power was a good thing. Not because of what he did, but because of how the advancements made by the reichsekonomie and and the chain of events that he precipitated created a richer, more advanced world.
Because Historians are doing this for Genghis Khan right now.
Trained, though not professional, Historian here. That article from cracked wasn’t a joke and this process has been ongoing for a decade or more. History has a problem with the whitewashing of Genghis Khan.