I don't think this is a very good way to think about things. There are many examples in history of some people looking at other people as "sub-human" for vario

I don't think this is a very good way to think about things. There are many examples in history of some people looking at other people as "sub-human" for various reasons. Should they have continued their (now considered evil) actions since it was uncertain if these "sub-humans" had consciousness or feelings?