There is a unifying principle that underlies Fassbinder’s critique of modernity. Fascism isn’t a political program. Fascism is an inherent, pervasive condition, a cancer at the center of modern life. How do we deal with this fascism? How do we hold it at bay? Characters seek out the safety of anonymity, the cold comfort of depression, passionless lives, the perfection of inauthentic, tired, rote mechanical repetition. This is one possible response to fascism. Violence, extreme self-destruction is another. Neither are a cure, of course, but a temporary salve, a mild palliative at best. Sadomasochism in this sense is not a disease unto itself in need of further psychological treatment, but a logical response to fascism. The cauldron broils, the frustrations builds. Scapegoats become necessary. There must be a cause to our ills. This is why left wing critiques were off mark. You can not reduce the complex psychological makeup of a character to prototype. Petra’s loneliness, madness, and cruelty have nothing to do with her lesbianism, and everything to do with the fascism of modern life.
Is there no way out of this? Perhaps not. It is a bleak, pessimistic view of modern lives. The role of the artist is to bring this disquieting truth to the forefront, examine it under extreme conditions, not to present a 15-point political program to cure fascism once and for all.