In no wise did I say they were savages, you inserted that into the discussion as if you wanted me to say such a thing. This leads me to the conclusion that you are looking for a villain so you can posture and pose as Defender of the Race. Go play hero someplace else.
Makes sense to me. Kinda like helping the Chinese against the Soviet Union, then the Soviet Union against the Chinese. Helped us to win the cold war. It has been done sucessfully in a hot war also.