I agree and he is rapidly losing the plot - are there such things as Jehovah Muslim Witnesses, as he could qualify - i he continues the personal insults then we know where he will end up as to AB
For me, I go back to Boxie's "!we went to Sunday School because it was expected of us, not out of any faith conviction" and add Church to that as well as being bored rigid by the Bible when, at an early age, I realised that it was fiction, albeit a very good document to explain the unexplainable in the past, as well as lay down some basis of Abrahamic religions morals and ethics.
And as life progresses, the hypocrisy in all faiths and the way they present themselves make me even more despondent. The only one that I have a modicum for respect for is Quakerism for they at least allow you to think and contemplate, and that's no bad thing.