I'm not exactly a religious person, so I would rather a religious person be the one to debate me on this topic. If cybernetic augmentation becomes a commercial product, and people can go to "cybernetic clinics" and get their normal arms replaces with robot arms, would this be ok? I've heard arguments that god created people in his image, and this would be defiling this image. Personally, I think it would be ethical, and very useful in medical terms. People with broken limbs can replace them with a better limb. Blind people can get eyes with cameras and stuff. Anybody think differently?
I am going to ruin your argument, sorry about that. Ethical beliefs depend on who is viewing them. A religious man would probably find his immoral, and a scientist would find this imperative to human evolution. SO technically it is and is not ethical, because nobody draws that line except who views the find.