Krishna drives the point home. You are bound, Arjuna — not by chains, but by something deeper. Your own nature, your own accumulated tendencies, your own karma — these have shaped you into who you are. What you refuse to do out of delusion, you will end up doing anyway, pulled by forces you cannot override.
This is not fatalism. It is realism. A seed planted in the ground does not choose whether to sprout — it sprouts because that is what seeds do. Arjuna's warrior nature is his seed. The battlefield is his soil. Refusing to fight will not change what he is; it will only add confusion and suffering to an action that was inevitable.
The compassionate reading of this shloka is this: stop resisting who you are. Instead, take that very nature and offer it to the Divine. Then the same action — performed in surrender — becomes a path to freedom rather than bondage.