Do not delude yourself and do not be so brainwashed by your faith that you deny facts. You simply cannot sit and type that NO religious Christians have ever been involved in ANY atrocities throughout the ages. That is simply delusional and completely untrue. You should not take these facts, however, as a knock on Christianity or on your faith personally. They are simply facts.
The only delusion is the one you promote.
FYI-Religious Christians defend the faith when it is attacked. They do not nor have they ever attacked first. Christianity is love. But Christianity fiercely defends wshen its people are attacked.