I believe that religion is just a scapegoat for all these conflicts, and religion is used solely as a reason for these people to cause those wars. There also have been numerous conflicts which didn't involve religion, such as Mongol invasions and Stalin's execution of 20 million people (not to mention tens and even hundreds of conflicts in Eastern Asia alone).
Well I didn't say every conflict included religion.
For other reasons atheists might consider religion an enemy. This. This. This.This.This.This.This.This.
1. Yes there is. The Arch Diocese or local church keeps records of each Confirmation. I don't have authorization to view private files. Sorry.
2. Excommunication is still the CCC, so no, it's no 'obsolete'.MODERN EXCOMMUNICATION
3. List of Excommunicated people. Including 21st century.
4. It's a personal preference, which I've already explained.