Today's leftists, socialists and progressives would bristle at the suggestion that their agenda differs little from those of Nazi, Soviet and Maoist mass murderers. One does not have to be in favor of death camps or wars of conquest to be a tyrant. The only requirement is that one has to believe in the primacy of the state over individual rights.
The unspeakable horrors of Nazism didn't happen overnight. They were simply the end result of a long evolution of ideas leading to consolidation of power in central government in the quest for "social justice." It was decent but misguided earlier generations of Germans -- who would have cringed at the thought of genocide -- who created the Trojan horse for Hitler's ascendancy. Today's Americans are similarly accepting the massive consolidation of power in Washington in the name of social justice.
If you don't believe it, just ask yourself: Which way are we headed tiny steps at a time -- toward greater liberty or toward more government control over our lives?
Perhaps we think that we are better human beings than the German people who created the conditions that brought Hitler to power. I say, don't count on it.