How did your country vote?

https://lemmy.ml/post/45040130

the Gravest Crime against Humanity

So now, there’s layers on suffering.

The ones that died on manmade famines, the ones that died on slavery (not chattel), the holocaust, the ones that got tortured by isis, etc… Didn’t endure enough suffering.

Gravest crime against humanity is not the same as the most suffering caused. It is not just number of people that suffered either.

So it’s about what? Can you explain? Because there’s no metric whatsoever that makes the chattel slavery the abhorrent behaviour with the most affected people, neither the longest one.

So please explain me what does it mean the “gravest” in this context