Political repression has produced an art movement called excessivism. Think of George Floyd’s head painted on a brick wall. Nobody’s painting over that expanse. Or of Ai Weiwei and his sunflower seeds. Or of Bansky. The more repressive the state, the more biting the art. Excessivism fulfills British philosopher Alan Watts theory of polarity, also called the law of opposites. As he writes in “The Two Hands of God,” opposing qualities create, define and sustain one another.