Perhaps playing Senior Care for a living, I am hyper sensitive to "kindness". Regretfully, I have far too many stories of lightly veiled anger, for kindness not to be a dominant theme in my life. Not that all of the stories recall young mistreating old. Old often doesn't show forth as weakness, and often youth is instinctively kind.
In a culture which is saturated with the "The Golden Rule" moral platitude, it is perplexing as to why there is so much "I am me and you are not". My best insight, at the moment and likely only to be held for a day or two, is that:
So far, as I read history, both the Darwins and the Christians are propelling the world culture in the direction of peace. Clearly the well being of the species is ascending on average. The median, not so much. However, with half of the people promoting "obligated without entitlement" and the other half promoting "entitled without obligation" there is going to be some slapping....on both sides!
PS: There is an obvious bizarreness about the colors claimed by those scattered along the "self vs one" altruism spectrum. Clearly, the Darwins are Darwins, but, being the dominant tribe, they have first claim to the Christian tag... while the Christians, clearly more aligned with Christian sensibilities, disavow the Christian tag so as to not identify as " Darwins". As such, they have acquiesced to being tagged humanist, unitarians, new agers, socialist, Marxist, etc. For distinction this has probably been a good thing. Two books with the same name is not good for either.