humans have been around for a million years

and 20,000 years ago you lived in a 300 person tribe

the other tribes were essentially not human to you and you killed them willy-nilly

the world wars industrialized it

nuclear weapons put a lid on it

but the fire is still burning

in order to kill your fellow you have to objectify him, call him a cockroach for example

this is not new

the words of Jesus were not in vain and they have changed the world just not enough and slowly