And then, one Thursday, nearly two thousand years after one man had been nailed to a tree for saying how great it would be to be nice to people for a change, one girl sitting on her own in a small cafe in Rickmansworth suddenly realized what it was that had been going wrong all this time, and she finally knew how the world could be made a good and happy place. This time it was right, it would work, and no one would have to get nailed to anything.
-- Douglas Adams, The Hitch-Hiker's Guide to the Galaxy
(Immediately after she realized it, the Earth gets destroyed.)
let's maybe not push the propagandic idea that humans are inherently bad, humans are in fact inherently extremely friendly (to a fault) and the idea that the opposite is true is part of what's needed to restrain our inherent need to help others.
Any time a group of humans is placed in a difficult position they start working together, there's that famous example of a group of kids accidentally ending up basically recreating Lord of the flies except they just got along and eventually had pretty comfortable lives, because as it turns out working together makes things way easier!
Humans mostly help each other. Governments do not like challenges to their authority. Jesus was killed because of the challenge he represented to the Pharisees. Ultimately Rome killed him, but at the demand of the Pharisees and an unruly mob that had been whipped into a frenzy.