Although we have in theory abolished human slavery recognized women's rights and stopped child labor we continue to enslave other species who if we simply pay attention show quite clearly that they experience parental love pain and the desire for freedom just as we do.
My dad was a Marine. He was one of the Montford Point Marines. Those are the equivalent of the Tuskegee Airmen for Marines. He's a tough tough guy. When I was 15 we had a fight and I didn't speak to him for 10 years.