…your line where you stated,”where people see themselves as being morally pure or right because of their religion or political persuasion “ “This can lead to dehumanising of the other.. ..”
There have always been Christian “counterfeits” throughout history,that you have lumped together in your argument against true Christianity. The truth of Biblical revelation in the “God-breathed” Holy Scriptures is contrary to how Christian “counterfeits” have acted throughout history.
The true “born again” Christian ( see John chapter 3) is totally different to the Christian “counterfeits” that have used the name in vain,and shown this by their total disregard to Biblical truth and trying to glorify God in everything they do.
You have a false understanding of Christianity,Siderite,and the Gospel message of reconciliation with your Creator. Your lumping together of Christians and people who claim to be,is naive to the extreme.You need to reconsider your foolish claims.