Theory vs. Anti-Theory in Ethics

Many well known philosophers defend the role of theory in ethics. They suppose that it is impossible to justify the moral rules and principles we live by without a theory being in place. They also argue that theorizing is needed in order to rationally generate new or modify old rules and principles. Anti-theorists argue that theories in ethics oversimplify matters and only give the appearance of being useful. The debate between the two sides seems not to be resolvable.