Can't be said enough: And Lileks says it better than anyone. On the Right Wing=Nazi fallacy:

But Communism doesn’t have anything that can be expressed as pithily as “Goose-stepping.” Except, of course, for the goose-stepping: May Day parades featured some marvelously crisp leg-swings. And the parallels just keep coming! By some peculiar coincidence, the attributes of National Socialism are quite similar to the Soviet system: forced relocation of ethnic groups, the extermination of economic classes, the subservience of Art to the needs of the State, the imposition of Terror as a means of enforcing Party loyalty, the mass arrests, the hasty graves.

And from whence could this gem come today:

How can we understand you if we don’t know your race?

Hint: Think about the maize and blue.