I think we missed here. My whole point was that a robot that too strongly resembles a human might be rejected by many people because of the resemblence; where a robot with a face that is either cartoony or otherwise does not too closely resemble a human would not be perceived as threatening. I assume the protest is based upon the fear that robots could easily pose as particular humans, as was the case in Asimov's
Tercentary Incident. The TZ's
In His Image also has a relevant issue, as the woman was about to marry a robot, that was modelled on its creator. Of course, Deadcross also relates, as the robot modelled on the creator defies him; although not claiming to be human. See my review of
Deadcross for a brief discussion of all 3.
The uncanny valley only has to do with human's tendancy to accept cartoony faces, but reject faces that are closer to human, but still not quite human. I met a woman who had no face. By that, I mean that she had 1 eye, no nose, and just a flat slab of skin where the normal features should have been. Most people would immediately avert their eyes upon encountering her 'face.' A face that has 1 eye noticably lower than the other would also seem repulsive. These have to do with the uncanny valley, while the other does not.
