(I am with you incidentally, but this is based on your option 3)
According to option 3, we allegedly do not have free will because our brains are wired to react in a set of ways to incoming sensory data. The wiring of our brains include whatever our beliefs are - they act as the ultimate black box processors for generating actions based at least in part on our sensory input. I find it amusing that our belief in free will must necessarily affect how we generate actions in response to sensory input. In other words, we were pre-wired to get that subject wrong in the first place, and yet it has created a higher level filter that is affecting our actions.
Put more bluntly, even if free will does not affect our actions, our belief in free will does. A gnostic view of free will, if you will. Or a Jorge Borges story waiting to be written.