SNIP Breyer, feeling secure and certain that he and his family were protected because of his lofty position, smugly said that the people who I care for deserve no means of self-defense. To him, they are not human, so why would I consider HIM to be human?
Oh, my. But, that last is a dangerous sentiment.
The whole basis for Nazis killing Jews was that Jews were not quite human.
Similar for the psychiatric theory that man is just an animal with no soul. Lots of psychiatric barbarities practiced on people who were "just animals."
Of course, those were nothing more than smoke-screen justifications. The perps knew full well their crimes were committed against other humans. They just used the justifications to gain some tolerance and reduce resistance to their schemes.
I would argue to consider him human, but stop there. He can be a political enemy, and still be human. Heck, he could be a mortal enemy and still be human.
A common thread amongst the greatest philosophers is charity and mercy towards enemies when they finally come under your power. Treat them less-than-human and you justify their treatment of you.