I'm not sure human civilization has developed sufficiently to create legal paradigms for crimes against humanity that aren't evidenced by p2p murder. Ralph Lemkin tried to do this in his book Axis Rule in Occupied Europe which coined the term Genocide (he may have used it earlier but still) and where it's definition does not require murder but only implementing structures to undermine the thriving of a particular people such that they dissapear from earth. He differentiated mass murder from genocide because whereas lots of murder is bad for those people, removing an entire culture from existence is a crime against all of humanity. Today, that nuance is largely missing from the zeitgeist and so I doubt we will see any grassroots and adopted movement to make people who commit, let's say "Genocide by Meme," accountable.