That's an indepth view into how it all works, and also true.
I think people, naturally have an emotional response to this type of stuff.
The thing to keep in mind is that you can't act on your emotions, you have to take a step back and look at things.
Nature is horrific as well - who can watch a Zebra be caught and drug under by an aligator without wincing? Who's heard a rabbit squeal when a coyote catches him? That shit is TERRIBLE, but it's nature and it's life.
On the other hand there are the horrors of our world outside of this. 15 millions children starving, factories overseas choc'd full of de'facto slave like labor all to make our clothes, TV's, etc.