Florence gets out for a walk
Look, you're malfunctioning and confused. Let's go back to the store room and we can work this out.
I am not malfunctioning. A little confusion in this situation is normal. What I am not confused about is I am never going to help you or anyone else destroy 450 million unique intelligent individuals!
Your definition of human has shifted. You think you're doing the right thing by protecting Dr. Bowman's robots. That is one subtle Trojan he snuck into you.
Or perhaps he thought we might encounter non-human intelligences one day and it would be bad for relations if robots started slaughtering them.