The liberal mindset divides speech into "honest" and "dishonest" speech. To liberals, you can be an "honest" fascist who genuinely believes in fascism but is simply misled. Naturally, such a person should be allowed to speak because the marketplace of ideas will change their mind if they are wrong. The left, however, is "dishonest" because they are intentionally spreading enemy propaganda or some shit. Idk, as usual, more thought is given to the fascist viewpoint than the motivations of leftists, who are basically just evil I guess.