Answer:
Ad hominem attack
Step-by-step explanation:
A logical fallacy is a flaw in reasoning.
Ad hominem (literally translated as to the person) is a type of logical fallacy in which a person criticizes or attacks another person, rather than what they are saying. Here, the speaker doesn't critize the mentioned poem. They don't give explanations about why the poem is not good. They simply attack the writer, stating that they are a sick and morbid person. That is not a valid reason as to why someone shouldn't read a poem.