Taylor's Soft Determinism

The problem that Taylor finds with Soft Determinism is that it does not allow us to be completely free. In soft determinism, Taylor believes that if a person says the action is free than it also means that they could have acted differently. Taylor’s alternative is the theory of agency (self-determinism). The theory of agency (self-determinism) means that the person causes the free actions and it is not caused by something inside the person but by the whole person. I believe Taylor’s alternative has some problems. I am not exactly sure if I understand this theory. On page 134, Taylor states that the data “rest upon nothing more than fairly common consent. These data might simply be illusions”. I do not exactly understand how this works. But