No, if you only have one choice, there is NO choice. You only have the illusion of choice, the outcome was always inevitable. I don't see anything abstract about that.
But the word "choice" has always referred to what I described and what you call the illusion of choice. It seems abstract to me because it doesn't acknowledge the complexity of the mind. Would you admire a van gogh, or say that he didn't really paint it, his arm was forced to?

It's essentially a semantic disagreement, but I don't get your insistence that free will must be unbound. That would require omnipotence, yes? And presumably no sense of right and wrong, else our will would be bound by our conscience. It seems to me like you add up all the external forces that push us around, and say that despite them, we have free will. But that if our brain has a definite process by which it decides things, we don't. The freedom in my free will comes from our ability to do what our psychological selves want--and your description of that as unfree boils down to "we have to do what we want, so we don't choose it".

I think you're confusing fatalism and prophecy, which is the expression of fatalism.
Isn't that how it was described originally? "I don't need to work because it's all determined anyway" is an expression of fatalism right? Because it can matter if you work.