The greatest human tragedy of all time

[Meneldil]

When we were under a nobility we were still in a nation-state, though in a different form to what we consider it today. As for religion - it is because of nation-states that it has achieved enough power to cause people to die for it.

Not true, and not true.

Nation-state is widely considered as a creation of the modern era, and as such, do not include feudal state, tribal groups and so on.

And we all know that people have been willing to kill themselves over a religious issue way before the modern era.

I think you're confusing state and nation here. Both are two really different notions.

No it wasn't, but Nation States have allowed for the industrialisation of killing.

I disagree aswell.

The Ottoman Empire was in 1917 all but a nation-state (Empire being almost the antithesis of nation-state), yet it's responsible for the first large-scall genocide of the 20th century.
Furthermore, the world has known large-scale genocide in the past aswell. The fact that Mongols or Conquistadores didn't have death camps doesn't make their slaughter less hideous.