They do this literally all the time, not to normalize the idea, but to desensitize you to the accusation. That way, when they do something that is actually fascist, like calling up the Kansas National Guard under the Insurrection Act to go door-kicking in Chicago for illegal immigrants, your brain enters a thought-terminating state of “nothing-burger, both sides, etc.”
Example, they liked to use the word “insurrection” a lot about anything Democrats did following J6.