Answer: an appeal to emotion
Step-by-step explanation:
Rhetoric simply means the art of writing or persuasive speaking which is used in informing or persuading the audience.
Based on the excerpt, the type of rhetoric that is used to convince readers that censors have unjust motives is the appeal to emotion.
Appeal to emotion refers to an informal fallacy whereby the emotions of the audience is being manipulated by the speaker when there's no factual evidence in order to convince the audience or win an argument.