Marcus's behavior best illustrates the defense mechanism of "projection".
Defense mechanism, in psychoanalytic theory, any of a gathering of mental procedures that empowers the brain to achieve bargain answers for clashes that it can't resolve.
Projection is a type of defense in which undesirable sentiments are uprooted onto someone else, where they at that point show up as a danger from the outside world. A typical type of projection happens when an individual, undermined by his own furious emotions, blames another for harboring unfriendly considerations.