It seems almost redundant to call for the retirement of the free willing self as the idea is neither scientific nor is this the first time that the concept has been dismissed for lacking empirical support. The self did not have to be discovered as it is the default assumption that most of us experience, so it was not really revealed by methods of scientific enquiry. Challenging the notion of a self is also not new. Freud's unconscious ego has been dismissed for lacking empirical support since the cognitive revolution of the 1950s.
Yet, the self, like a conceptual zombie, refuses to die. It crops up again and again in recent theories of decision-making as an entity with free will that can be depleted. It re-appears as an interpreter in cognitive neuroscience as capable on integrating parallel streams of information arising from separable neural substrates. Even if these appearances of the self are understood to be convenient ways of discussing the emergent output of multiple parallel processes, students of the mind continue to implicitly endorse that there is a decision-maker, an experiencer, a point of origin.
We know that the self is constructed because it can be so easily deconstructed through damage, disease and drugs. It must be an emergent property of a parallel system processing input, output and internal representations. It is an illusion because it feels so real, but that experience is not what it seems. The same is true for free will. Although we can experience the mental anguish of making a decision, our free will cannot be some kind of King Solomon in our mind weighing up the pros and cons as this would present the problem of logical infinite regress (who is inside their head and so on?). The choices and decisions we make are based on situations that impose on us. We do not have the free will to choose the experiences that have shaped our decisions.
Should we really care about the self? After all, trying to live without the self is challenging and not how we think. By experiencing, evoking and talking about the self, we are conveniently addressing a phenomenology that we can all relate to. Defaulting to the self in explanations of human behavior enables us to draw an abrupt stop in the chain of causality when trying to understand thoughts and actions. How notable that we do this all so easily when talking about humans but as soon as we apply the same approach to animals, one gets accused of anthropomorphism!
By abandoning the free willing self, we are forced to re-examine the factors that are really behind our thoughts and behavior and the way they interact, balance, over-ride and cancel out. Only then we will begin to make progress in understanding how we really operate.