I'm not surprised. When you go through life saying 'I'm better than you because I'm not a Nazi" and then someone tells you that what you are is the same as a Nazi.... well, that isn't going to be received too well. I have had this debate going off line for nearly a week with a lefty poster, and he has called me every name in the book. I kept asking him to give me some concrete definition of what is left and what is right. He only responded emotionally. This isn't something that was part of my 'inner core' before, and I had never really done any research on it until now. But from my days in high school 30+ years ago, I never bought into the political spectrum chart that placed the Nazis and Commies on opposite ends. They were different in some ways, but their differences were not all that great while their similarities (genocide, totalitarian, cults of personality, atheistic, central economic planning) had to put them on the same side of any logical political spectrum.
To me we can call them left, right, up or down, but you can not logically call the Nazis and Commies opposites.