As much as liberals suck, they're not fascists. They will do fascist things in a similar way to Soviet states, playing to masculinity, bigotry, nationalism, and violent repression. They often slide into fascism and ally with fascists.

However, most of them do believe their own bullshit. Most people do. They think their fascist actions are justifiable in service of democracy. They think capitalism is compatible with democracy, and that it's even necessary for democracy.

They're willing to believe that because their jobs depend on supporting the status quo. They don't think about it consciously, as the unconscious mind can blind us to inconvenient truths. They don't perceive the contradictions.