Have you ever looked into split brain patients? Having learned about the confabulation and stuff that happens automatically for them when the brain cannot possibly know what’s happening, I’m pretty sure we all just make up the reasoning for our behavior after we are compelled to perform the behavior.

Same with brain tumors that cause drastic changes in behavior, including shedding of morals. If we have no control over our biology, we really have no control over our psychology or behaviors, either.

At the same time I’m unsure how I feel about most people believing in free will. On the one hand I’m sure it helps somewhat with curtailing bad behavior, on the other hand it causes us to hold people personally, morally, accountable for transgressions, and punish them for behavior they had no real control over. I’m uncomfortable with that portion.