Salaam
Another reply from
RandyE
My apologies; I'm not actually in this but another forum, as you may know.

I was primarily concerned with the ability to choose one's belief, in general.
That just begs the question against free will. This is offered as proof of the assertion "one cannot choose his beliefs." But if we asked why this proof was proof, the response would be "because one cannot choose his beliefs."
Physicalism, or physical determinism, tells us actions are done necessarily, as a result of certain processes that make an action or held belief or thought guaranteed and not as a result of choice. If physicalism were true, we should expect to see certain beliefs held even in spite of overwhelming evidence; even if they recognized the evidence as true: there should be at least some physical process that results in a belief being held even while recognizing it as true. They believe the evidence is true and that it points in a direction opposing their viewpoint, but these people would still believe their views. There's nothing stopping purely contradictory positions from both being held on physicalism. Now under choice there are still people who hold beliefs stubbornly; but they hardly hold both to be true. They think something is wrong with the evidence, or its application, or both (whether rationally or not). They at least believe they are acting rationally. Further, on physicalism we should expect even extremely small things to move very intelligent people, even if they are non-sequiturs. Physicalism doesn't guarantee (and indeed cannot) truth-conformity or rationality. It is a blind process.
Everything in our experiences points to free will. Even your responses. Even if you believe your current belief was physically determined, you certainly believe what you're typing in response is a product of your mind, and not merely a physical process. In short, even you think you're typing what you want. And how did you come to form your belief in physicalism itself? Why is it that no one can seem to come up with the formulas which guarantee belief? Finally, why is it any beliefs are actually true? How can we know? If what we know and believe is physically determined, how can we be sure that physical determinism isn't wrong, and thus our entire worldview? The answer is simple: our collective experiences and senses all inform us reality exists, and is knowable. Yet all of our experiences inform us free will exists, and all we have on physicalism is assertions.
But did they choose to talk themselves into it? If the answer is "no," then why did they have to talk themselves into it? Shouldn't they just already believe it? Cognitive dissonance (embracing something as true while not believing it) is a defeater of physicalism. Physicalism has no room for such considerations, while free will does. After all, they "want" to believe its true, and that's why they repeat it. Answering "they repeat it to themselves because that's how physicalism works" doesn't answer a major question: why?