I am re-reading René Girard I See Satan Fall Like Lightning.
The more these rivalries are aggravated, the more the roles of model, obstacle, and imitator become interchangeable at the heart of the mimetic conflict. In short, to the extent that their antagonism becomes embittered, a paradox occurs: the antagonists resemble one another more and more. They confront one another all the more implacably because their conflict dissolves the real differences that formerly separated them. Envy, jealousy, and hate render alike those they posses, but in our world people tend to misunderstand or ignore the resemblances and identities that these passions generate. They have ears only for the deceptive celebration of differences, which rages more than ever in our societies, not because real differences are increasing but because they are disappearing.
emphasis is mine.