Pick almost any leading Nazi propagandist of the Weimar era: Josef Goebbels? Theodor Fritsch? Both were prosecuted for anti-Semitism. You didn't have to threaten to kill the Jews: The publication of the statement "The Jews are our misfortune" was forbidden by court order. Der Sturmer was prosecuted dozens of times and just plain seized and destroyed on another dozen occasions. Its publisher Julius Streicher was twice gaoled.
Yeah, yeah, say the Brays of the world. Goebbels, Streicher... But what about the big guy?
Inevitably, the Nazi party exploited the restrictions on "free speech" in order to boost its appeal. In 1925, the state of Bavaria issued an order banning Adolf Hitler from making any public speeches. The Nazis responded by distributing a drawing of their leader with his mouth gagged and the caption, "Of 2,000 million people in the world, one alone is forbidden to speak in Germany."