Eyes roll whenever comparisons to Nazi Germany are made, and for good reason. The analogy is almost never called for, and is almost always an example of rhetorical hyperbole. George W. Bush was compared to Hitler. Barack Obama has been as well. Neither comparison is fair.
But that does not mean Nazi comparisons are always inappropriate. If anything, the overuse of Nazi references has desensitized the public to manifestations of actual fascism. When "fascist" becomes nothing more than a pejorative, few will take its meaning seriously.
Right now, we have an actual fascist running for president of the United States, and he seems poised to secure the Republican nomination. Donald Trump is a fascist, not in a vague rhetorical sense, but according to the father of fascism's own definition.
Benito Mussolini coined the term and defined it as complete subjugation of the individual to the state. He wrote: