Well, I think the exchange I've been having with DD does lack coherence. But I'm not sure it's all my fault. But I guess I'm not in a position to judge.
What I'm trying to get at, in my own messy way, is that it is legitimate and typical for human beings to have questions beyond what science can answer. Does the consciousness persist after death. Science can't answer this. We still don't really have a good understanding of exactly what consciousness is. We certainly have no way to determine what happens to it after we die.
We can make statements of faith such as "it ceases to exist," "it merges with the universe" or "it goes to heaven." However, none of these propositions can be tested. We may choose one option over another based on various axioms, but that is it.
Similarly, people choose to work together or enter into conflict based upon their expectations and beliefs. It is not a wholly rational process and things like religious beliefs play a major role here...as do cultural biases, rational market choices and historical experience. To look at this process and conclude the religious beliefs are primarily harmful is a bold statement that should be backed up by analysis. Certainly folks like Weber have shown that it has a powerful norming effect which, like nationalism, can get large groups of people to work together towards shared goals.
Hope this seemed somewhat less pointless...but like I said, I am in no position to judge.
I think the idea of asking the question is legitimate, but perhaps expecting an answer in the face of inadequate if not contrary evidence, is hoping for too much, and in DD's view, idiotic.
Science cannot yet fully explain consciousness, but I am willing to wager that it is further along the road than you suspect. Try reading Daniel Dennett if you are curious.
Asking whether the world would be better without religion is definitely a case of 'could have done otherwise'. My view is that perhaps it was once useful, but we now know better. The problem with religion is that it can be summoned up to support almost any idea, and that makes it at least irrational in practice, and particularly dangerous now that we have so much technology that does not allow for afterthoughts.
Religious rituals and ideas always have some practical basis relevant to the time, but technology means that so many are now fossils. As a (trivial) example, strong family ties guaranteeing care in old age, have largely been replaced by pensions and insurance.
He has been answering you. Anglicanism is actually a religion, you know. Remember, you asked him to name one...and then he named one...and then you ignored him and told him to name one.