This has nothing to do with the European continent. Yours was a remark on Christianity, about how it saved everyone from being "rapist and murderer". I stated that not every Non – Christian society in the past was ridden with rapists and murderers. If we take your sentence out of the whole European context, we can detect the fallacy.
Let us stop pretending for a moment that Christianity took people out of the caves and gave them culture and civilization, as it is not the case.