Well you picked a good one with murdering and the death penalty and so forth.

> If you're not prepared to give up all claims on how others should act, then you're not really a moral relativist.

My only claim extends as far as I can act or influence others to act to serve my own needs and wants. Am I not a moral relativist?

I'm not sure that the author is commenting on society, but young people who are morally relativistic. I think he badly misrepresents their argument and doesn't really make one of his own.