>How many people died under the totalitarian regimes that preceded them? These oppressive regimes did not start in a vacuum.

You're proving my point. Political violence just leads to a cycle of more political violence and/or totalitarianism. The Chinese Communists, if you recall, were violently put down by the Nationalists in the civil war. Starting political violence to stop the "fascists", just condemns your society to that fate. Not to mention that people who engage in political violence aren't exactly the most sane people. What makes you think they'll stop at "fascists"? The Bolsheviks eventually turned against the Kulaks, once their allies, and Mao launched the Cultural Revolution to consolidate power and push out rivals.