Functional Free Will
We certainly have a sense of free will or what we might call functional free will. We still have the sense of choice even if conditioning, genes, or genies condition the choices we make. We still have to choose even if our choices are preset.
Imagine you and a friend jump off a cliff to your deaths. You believe in free will and insist to your friend as you fall that you both chose to die. Your friend believes all actions are predetermined and says you were both fated to die.
Humans can do what they will, but they cannot will what they will.
Arthur Schopenhauer, Essays and Aphorisms
To paraphrase Bashō: High cliff—fools jump off—splat!
The truth is, no matter what story you tell yourself, you are fated to choose. And that is all the free will you need.