what rhetorical device of a good speaker, does marullus use to make the people feel shame and guilt for their lack of loyalty?

THere is the strong metaphor to blocks of stones, "You blocks, you stones, you worse than senseless things!" Certainly Marullus is trying to refer to the masses as generally stupid, they don't know when to be loyal or rebellious.Allusions to Pompey are used through the speech. He also uses allagory between both Rome and Pompey. He uses allagory as an extended metaphor to reference the plague and ingratitude.