I think Freud is about contamination, but I think that is something he learned from Shakespeare, because Shakespeare is about nothing but contamination, you might say.
Shakespeare will not make us better, and he will not make us worse, but he may teach us how to overhear ourselves when we talk to ourselves... he may teach us how to accept change in ourselves as in others, and perhaps even the final form of change.
Shakespeare is the true multicultural author. He exists in all languages. He is put on the stage everywhere. Everyone feels that they are represented by him on the stage.
Indeed the three prophecies about the death of individual art are, in their different ways, those of Hegel, Marx, and Freud. I don't see any way of getting beyond those prophecies.
In fact, it is Shakespeare who gives us the map of the mind. It is Shakespeare who invents Freudian Psychology. Freud finds ways of translating it into supposedly analytical vocabulary.
If they wish to alleviate the sufferings of the exploited classes, let them live up to their pretensions, let them abandon the academy and go out there and work politically and economically and in a humanitarian spirit.