Kill the unbelieveris a Meme that propagates in many different communities and among many different belief systems.
- In Old Testament times the Israelites committed genocide against people not like them. Somehow Christians convince themselves that wasn't wrong.
- In Pagan Rome Early Christians were persecuted. Now that was a heinous Sin!
- Once Christians were in power Christians started persecuting Heretics and Unbelievers. Somehow that wasn't as bad as when Christians were persecuted.