Grab a chair, because I may be a little thorough :3
One must remember that what we percieve as Good or Evil are just two sides of the coin that is Fact: we distinguish the two from eachother based off of our own morals. Speaking as a History Major, one must recognize the social situation in order to understand how these events came to be. Following the signing of the Treaty of Versailles, tension began to build in Germany, because they were forced to submit to many terms in order to settle many international disputes. Anger built within the population, and many civilians developped a deep loathing towards the Roma ("Gypsies") and Jewish communities, along with many other communities made up of cultures alien to Germany. In other words, the morals that they held and taught their children was that if it wasn't German (ie Jewish, Roma, African American, Gay, Handicaped/Challenged, etc.), it was seen as bad. But this racism went from old-fashioned biggotry to Scientific Racism. At that time, studies on human genes were being conducted, and the results led many Germans to believe that there was a biological superiority between them and the aforementioned cultures. This led them to even blame the Roma, Jewish, Gays, etc. on the Treaty of Versailles. Thus, with all this going on, many people began to want to "rid themselves" of the "inferior" races, and parties began to sping up, propagating these beliefs; one of them being the DAP (later named the NDAP, or widely shortened as Nazi). The German government, wanting to evaluate how much a threat this party would be to them, sent a spy/official, of sorts, to a meeting. Hitler, the one sent, agreed with their morals and joined. Once he rose to a higher standing in the party, and became inluential to the members and other German citizens, began to spread propaganda that supported his moral belief, causing rising anger from the Germans to their "inferior" counter-parts, and this mix of Raceism, Anger, and Post-war Economical Issues brewed into more war. The point I make is this: in this situation, A led to B which led to C. While many blame Hitler for everything that occurred during that point of time in history, he was only a piece on the bord, no matter how seemingly important a role he played. Not only that, but as I previously stated, there is no such thing as good or evil; only fact. Once more, these two words are only backed by our own morals, and morals are not fact; you cannot prove a moral belief to be wrong, you can only compare it to your own. While I do not endorse his past actions, I, as a student Majoring in History, say that he is neither good nor evil; therefore, I cast my vote under "Refuse to answer". If I was unclear on any points, seeing as this was written using a wii and was therefore virtually impossible to revise and elaborate, feel free to ask.