I remember my own parents being introduced by an elderly dubbie to 'The Two Babylons'. It appears that if ordinary folk are introduced to something that is written down, they cannot help but automatically believe 'it must be true.' Hence the WT is able to say 'don't read anything that originates from other religions as it is apostate' and ordianry folk will obey them and so never get another angle.\
Hislop, fell short of saying that all religions today have their roots in Sumer and are just deviating here and there from the 'resurrection theme' of religion, be it brought back to life, living in heaven, or reincarnation. They simply exist to 'explain' death. In the end, they are all the same with added frills and gilding and non of them can recognise the fact.
Religion has remained the most divisive institution in history, and Hislop meerly shows that even the most educated can't see the wood for the trees because they feel that only THEY have the Truth.......whatever that might be.