Perhaps this is because the truth is so utterly depressing. Hitler overcame such incredible odds and came so close to freeing the Aryan soul from its Jewish chains, only to be struck down one step from the finish line. I can think of no other feat in western history that rivals it. His success was so critically important, his defeat was our greatest tragedy.
Reflecting upon his legacy inspires me and also fills me with despair. Seeing the growing number of people who are beginning to understand and support him give me hope.