I'll just give a quick reply to this point about "genocide" here, and then post the rest of my thoughts that you spurred (thanks!) in a reply/chain of replies to your last post in order to expand upon and better frame the position that i'm coming from.

So you know what genocide is because you make analogies from your experiences. You have experienced death. You’ve seen it smelled it touched it thought about it and felt emotions about it especially in relation to your own survival. You have experienced many different ways to categorize things and other people so you understand the concept of groups of humans. You can compose from these experiences the concept of murder, and expand that to genocide. You haven’t experienced nothingness, but you have experienced what it is to have something, and then NOT have that something. Language provides shortcuts and quick abstractions for mental processing. You can quickly invoke many many experiences with a single word.