The Left's pretentious efforts to define "social justice," range from the purely absurd to the totally ignorant. They are at best a sorry joke, which deserves ridicule but not respect. It is part of the war on reality, which motivates Communists, Nazis, Social Democrats & the fellow travelers, we mistakenly call "liberals."
For additional thoughts on the subject, and suggestions how to deal with those who misuse language in such manner: Not Social & Not Just.