I think the term "Kantian constructivism" as an oxymoron. Kant was a constructivist about mathematics, but not about ethics.
Allen W. WoodKant does not regard freedom as an item of faith because it is too basic to our agency to be related to any end.
Allen W. WoodI think if there were to be a solution to the problem of free will, it would have to be a compatibilist one. Unfortunately, from that it does not follow that there is such a solution. Many philosophers find this an unwelcome message, and as often happens in philosophy, they punish the messenger by ascribing to him an entirely imaginary but untenable position.
Allen W. WoodKant takes a free will to be a being or substance with the power to cause a state of the world (or a whole series of such states) spontaneously or from itself.
Allen W. WoodFor the utilitarian, there is a fact of the matter about the good (the general happiness, or whatever conception of the good the utilitarian adopts) and about which actions or moral rules would contribute to maximizing the good. For the rational intuitionist, there are truths about which actions should be done and not done.
Allen W. Wood