The correct answer is Alliteration because while yes it does include the word "like" which would make you think this is a simile, alliteration is the key figure of speech that is being used "red, red rose".
sample answer from palto
King’s speech is from the point of view of a fellow African American who seeks civil rights and will not rest until the African American community achieves equal rights in the United States, but only through nonviolent methods. He states that African Americans will keep striving for freedom, but at the same time, he encourages the African American community to not indulge in any wrong or violent deeds. Malcolm X also attempts to encourage the African American community to revolt against destructive inequality, but he advocates using force and violence when necessary. His words “the ballot or the bullet” are meant to serve as an ultimatum to the government. If African Americans are not allowed to vote, then they may turn to violence to achieve their goals.
Brutal: savagely violent.